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.

A129505 Number of permutations of 2n-1 objects with exactly n cycles.

Table of values

n a(n)
1 1
2 3
3 35
4 735
5 22449
6 902055
7 44990231
8 2681453775
9 185953177553
10 14710753408923
11 1307535010540395
12 129006659818331295
13 13990945200239106865
14 1654339178844590073615
15 211821088794711294496815
16 29197210605623737977801375
17 4310704065427058593776844065

List of values

[1, 3, 35, 735, 22449, 902055, 44990231, 2681453775, 185953177553, 14710753408923, 1307535010540395, 129006659818331295, 13990945200239106865, 1654339178844590073615, 211821088794711294496815, 29197210605623737977801375, 4310704065427058593776844065]

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

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