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.

A052361 Number of permutations in the symmetric group S_n such that the size of their conjugacy class is even.

Table of values

n a(n)
1 0
2 0
3 2
4 20
5 104
6 644
7 4808
8 40214
9 361934
10 3623084
11 39889024
12 478937744
13 6226748384
14 87175900720
15 1307664018464
16 20922787860974
17 355687393636574
18 6402373361133596
19 121645097789915528
20 2432901997700960264
21 51090942116712179744
22 1124000727209301701528

List of values

[0, 0, 2, 20, 104, 644, 4808, 40214, 361934, 3623084, 39889024, 478937744, 6226748384, 87175900720, 1307664018464, 20922787860974, 355687393636574, 6402373361133596, 121645097789915528, 2432901997700960264, 51090942116712179744, 1124000727209301701528]

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

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