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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.

A308962 Number of permutations of [4n] with exactly 2n increasing runs of odd length.

Table of values

n a(n)
0 1
1 17
2 13930
3 77296296
4 1568558071080
5 84938094880524600
6 10128482222614148352960
7 2336936362896740255803152000
8 950622895076910219544822877635200
9 635598214592375283010356491822548022400
10 661314598267382330509313757278639302452192000

List of values

[1, 17, 13930, 77296296, 1568558071080, 84938094880524600, 10128482222614148352960, 2336936362896740255803152000, 950622895076910219544822877635200, 635598214592375283010356491822548022400, 661314598267382330509313757278639302452192000]

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

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