Integer sequences

Leyland number

In number theory, a Leyland number is a number of the form where x and y are integers greater than 1. They are named after the mathematician Paul Leyland. The first few Leyland numbers are 8, 17, 32, 54, 57, 100, 145, 177, 320, 368, 512, 593, 945, 1124 (sequence in the OEIS). The requirement that x and y both be greater than 1 is important, since without it every positive integer would be a Leyland number of the form x1 + 1x. Also, because of the commutative property of addition, the condition x ≥ y is usually added to avoid double-covering the set of Leyland numbers (so we have 1 < y ≤ x). (Wikipedia).

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Leyland Numbers - Numberphile

Leyland Numbers and Leyland Primes with Professor Ed Copeland... Reddit discussion: http://redd.it/2kl1wp More links & stuff in full description below ↓↓↓ Thanks to Patreon supporters: Herschal Sanders --- Joshua Wilson and Andrew Touchet --- Lê --- Stan Ciprian --- Alex Bozzi --- OK Mer

From playlist Ed Copeland on Numberphile

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My #MegaFavNumber is 79,873,884

My #MegaFavNumber is 79,873,884 which is the first number over 1 million that is in its own location in the digits of pi

From playlist MegaFavNumbers

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Collecting in Life and Death: The Curatorial Legacy of Leland Stanford Jr.

Leland Stanford Jr., only son of Governor and railroad tycoon Leland Stanford Sr. and heiress Jane Lathrop Stanford, died suddenly in 1884, just shy of his 16th birthday. It is no secret that the Leland Stanford Junior University and Museum were created in memoriam for Leland Jr., but much

From playlist Stanford Historical Society

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Ashok Leyland Optimizes Commercial Vehicle Suspension Design

Get a Free Trial: https://goo.gl/C2Y9A5 Get Pricing Info: https://goo.gl/kDvGHt Ready to Buy: https://goo.gl/vsIeA5 Engineers use MATLAB® to design suspension systems and quickly analyze ride and handling, reducing the number of prototypes.

From playlist MATLAB and Simulink User Stories

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1,010,010,101,000,011 - #MegaFavNumbers

This is my submission to the #megafavnumbers project. My number is 1010010101000011, which is prime in bases 2, 3, 4, 5, 6 and 10. I've open-sourced my code: https://bitbucket.org/Bip901/multibase-primes Clarification: by "ignoring 1" I mean ignoring base 1, since this number cannot be fo

From playlist MegaFavNumbers

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MegaFavNumbers - A number with 19729 digits

This video is about my MegaFavNumber. It has 19729 digits, and it is a power of two. [This link is now broken, and I can't find it anywhere else. :( ] See all the digits here: https://sites.google.com/site/largenumbers/home/appendix/a/numbers/265536 The OEIS sequence I mentioned: https:/

From playlist MegaFavNumbers

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Hans Haacke – Exposing Systems of Power | TateShots

Since the mid-1960s, Haacke has produced controversial work, often exposing systems of power and influence. In this film, he talks about two key works, Condensation Cube 1963-5 and A Breed Apart 1978. 'I believe it is necessary for the public... the voters... to become aware of these inte

From playlist Global contemporary art | Art History | Khan Academy

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Conversion Arcs and 2,916,485,648,612,232,232,816 (MegaFavNumbers)

I'm sorry. The MegaFavNumbers playlist: https://www.youtube.com/playlist?list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo

From playlist MegaFavNumbers

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American Pickers: A 1923 Lincoln Leland/Mercury (Season 17, Episode 3) | History

Mike and Frank take a closer look at a Leland-Mercury hybrid that was worth top dollar in the 1920s in this clip from "My Sweet Ford". #AmericanPickers Subscribe for more from American Pickers and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Watch more American Pickers o

From playlist American Pickers: Official Series Playlist | New Episodes Mondays at 9/8c | History

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212336448592654

From playlist everything

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MegaFavNumbers: RSA-2048

My own choice for a number over 1,000,000 is this 617 digit boy: 251959084756578934940271832400483985714292821262040320277771378360436620207075955562640185258807844069182906412495150821892985591491761845028084891200728449926873928072877767359714183472702618963750149718246911650776133798590

From playlist MegaFavNumbers

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Managing The Micro - Part 4 - On Line - 7th June 1981

BRIAN REDHEAD examines some of the implications of the new technological revolution for people in industry today, 4: On Line Laser supermarket check-outs, new time clocks at British Leyland, and Viewdata terminals in the local garage are only the tips of a number of electronic icebergs-ne

From playlist Managing the Micro - BBC 2

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Tutorial - What is an imaginary number

http://www.freemathvideos.com In this video playlist you will learn everything you need to know with complex and imaginary numbers

From playlist Complex Numbers

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Art Trip: Washington D.C. | The Art Assignment | PBS Digital Studios

Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h Today's episode has been sponsored by Squarespace. For more information, visit http://www.squarespace.com/artassignment In which we explore Washington, DC's vast and diverse collection of la

From playlist Art Trip

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EmberConf 2016: Compose Yourself with Ember and D3 by Ivan Vanderbyl

Compose Yourself with Ember and D3 by Ivan Vanderbyl Say you're building a chart, what's the most natural representation for specifying a visualization? A configurable chart component? Abstract components which can be used together to create something larger? Or low level primitives which

From playlist EmberConf 2016

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Awesome Number Pattern 11

A fun number pattern built from the number 999,999

From playlist Number Patterns

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122nd Commencement Ceremony 2013 - Stanford University keynote speech by Mayor Michael Bloomberg

More than 30,000 family members and friends gathered for Stanford's 122nd Commencement Weekend. The keynote of Sunday's Commencement ceremony was an address by Michael Bloomberg, mayor of New York, NY. He spoke to the graduates who entered Stanford Stadium with the traditional Wacky Walk.

From playlist Stanford University Commencement

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MegaFavNumbers - 35,785,968,397 and Two Primes! (#MEGAFAVNUMBERS)

This is my submission to the project #MEGAFAVNUMBERS . I'm going to talk about the Wolstenholme Primes.

From playlist MegaFavNumbers

Related pages

Composite number | Integer factorization | Probable prime | Integer | Number theory