cp's OEIS Frontend

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.

A322296 Number of permutations of [2n+1] with exactly n rising or falling successions.

Table of values

n a(n)
0 1
1 4
2 48
3 888
4 22120
5 685368
6 25344480
7 1087931184
8 53138966904
9 2909014993080
10 176372774697856
11 11729862804913680
12 848948339328178128
13 66420006805308507568
14 5585680154203107163200
15 502437191145813112268640
16 48134705092961286591532440

List of values

[1, 4, 48, 888, 22120, 685368, 25344480, 1087931184, 53138966904, 2909014993080, 176372774697856, 11729862804913680, 848948339328178128, 66420006805308507568, 5585680154203107163200, 502437191145813112268640, 48134705092961286591532440]

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

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