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.

A063083 Number of permutations of n elements with an odd number of fixed points.

Table of values

n a(n)
0 0
1 1
2 0
3 4
4 8
5 56
6 304
7 2192
8 17408
9 156928
10 1568768
11 17257472
12 207087616
13 2692143104
14 37689995264
15 565349945344
16 9045599092736
17 153775184642048
18 2767953323425792
19 52591113145352192
20 1051822262906519552
21 22088267521037959168
22 485941885462833004544

List of values

[0, 1, 0, 4, 8, 56, 304, 2192, 17408, 156928, 1568768, 17257472, 207087616, 2692143104, 37689995264, 565349945344, 9045599092736, 153775184642048, 2767953323425792, 52591113145352192, 1051822262906519552, 22088267521037959168, 485941885462833004544]

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

Content is available under The OEIS End-User License Agreement.