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.

A116956 Number of functions f:{1,2,...,n}->{1,2,...,n} with odd cycles only.

Table of values

n a(n)
0 1
1 1
2 3
3 18
4 157
5 1800
6 25551
7 432376
8 8494809
9 190029888
10 4768313275
11 132626098176
12 4049755214517
13 134677876657792
14 4845193429684167
15 187490897290080000
16 7765153170076158001
17 342721890859339812864
18 16058392049508837366771
19 796093438190851834236928

List of values

[1, 1, 3, 18, 157, 1800, 25551, 432376, 8494809, 190029888, 4768313275, 132626098176, 4049755214517, 134677876657792, 4845193429684167, 187490897290080000, 7765153170076158001, 342721890859339812864, 16058392049508837366771, 796093438190851834236928]

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

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