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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A246254 Number of permutations of [n] with exactly nine occurrences of the consecutive step pattern up, down, down.

Table of values

n a(n)
28 14708695606607601165843
29 3541988733308075285027550
30 503174667865819228904767230
31 54504030281627517895808563770
32 4983196403246326034913729334260
33 405629500925435775383214597193020
34 30367312487678851547450846684842845
35 2136522202012396295876641497958908090

List of values

[14708695606607601165843, 3541988733308075285027550, 503174667865819228904767230, 54504030281627517895808563770, 4983196403246326034913729334260, 405629500925435775383214597193020, 30367312487678851547450846684842845, 2136522202012396295876641497958908090]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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