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.

A226388 Number of n-permutations such that all cycle lengths have a common divisor >= 2.

Table of values

n a(n)
0 0
1 0
2 1
3 2
4 9
5 24
6 265
7 720
8 11025
9 62720
10 965601
11 3628800
12 130478425
13 479001600
14 19151042625
15 191132125184
16 4108830350625
17 20922789888000
18 1448301616386625
19 6402373705728000
20 466136852576275881
21 5675242696048640000
22 193688172394325870625
23 1124000727777607680000

List of values

[0, 0, 1, 2, 9, 24, 265, 720, 11025, 62720, 965601, 3628800, 130478425, 479001600, 19151042625, 191132125184, 4108830350625, 20922789888000, 1448301616386625, 6402373705728000, 466136852576275881, 5675242696048640000, 193688172394325870625, 1124000727777607680000]

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

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