on-line encyclopedia of integer sequences wikipedia - EAS
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See all on Wikipediahttps://en.wikipedia.org/wiki/On-Line_Encyclopedia...The On-Line Encyclopedia of Integer Sequences (OEIS) is an online database of integer sequences. It was created and maintained by Neil Sloane while researching at AT&T Labs. He transferred the intellectual property and hosting of the OEIS to the OEIS Foundation in 2009. Sloane is chairman of the OEIS … See more
Neil Sloane started collecting integer sequences as a graduate student in 1965 to support his work in combinatorics. The database was at first stored on punched cards. He published selections from the database in book … See more
The OEIS was limited to plain ASCII text until 2011, and it still uses a linear form of conventional mathematical notation (such as f(n) for functions, n for running variables, etc.). Greek letters are usually represented by their full names, e.g., mu for μ, phi for φ. Every sequence … See more
Besides integer sequences, the OEIS also catalogs sequences of fractions, the digits of transcendental numbers, complex numbers and … See more
Very early in the history of the OEIS, sequences defined in terms of the numbering of sequences in the OEIS itself were proposed. "I resisted adding these sequences for a long time, partly out of a desire to maintain the dignity of the database, and … See more
In 2009, the OEIS database was used by Philippe Guglielmetti to measure the "importance" of each integer number. The result shown in the plot on the right shows a clear "gap" … See more
Wikipedia text under CC-BY-SA license- https://simple.wikipedia.org/wiki/On-Line_Encyclopedia_of_Integer_Sequences
The On-Line Encyclopedia of Integer Sequences ( OEIS ), also known as Sloane's, is a large …
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85 rows · A number that has the same number of digits as the number of digits in its prime ...
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See all 85 rows on en.wikipedia.orgOEIS LINK NAME FIRST ELEMENTS SHORT DESCRIPTION A000002 Kolakoski sequence {1, 2, 2, 1, 1, 2, 1, 2, 2… The n th term describes the lengt… A000010 Euler's totient functio… {1, 1, 2, 2, 4, 2, 6, 4, … φ(n) is the number of positive inte… A000032 Lucas numbers L(n) {2, 1, 3, 4, 7, 11, 18, 2… L(n) = L(n − 1) + L(n − 2) for n ≥ 2… A000040 Prime numbers pn {2, 3, 5, 7, 11, 13, 17, … The prime numbers pn, with n ≥ 1…
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In mathematics, an integer sequence is a sequence of integers. An integer sequence may …
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The On-Line Encyclopedia of Integer Sequences ( OEIS) on laaja internet-tietokanta …
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Minor change from 180284 sequences and The On-Line Encyclopedia of Integer Sequences …
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The On-Line Encyclopedia of Integer Sequences® (OEIS®) The OEIS is supported by the …
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