A060726 - cp's OEIS frontend

A060726 For n >= 1, a(n) is the number of permutations in the symmetric group S_n such that their cycle decomposition contains no 6-cycle.

n	a(n)
0	1
1	1
2	2
3	6
4	24
5	120
6	600
7	4200
8	33600
9	302400
10	3024000
11	33264000
12	405820800
13	5275670400
14	73859385600
15	1107890784000
16	17726252544000
17	301346293248000
18	5419293175296000
19	102966570330624000
20	2059331406612480000

[1, 1, 2, 6, 24, 120, 600, 4200, 33600, 302400, 3024000, 33264000, 405820800, 5275670400, 73859385600, 1107890784000, 17726252544000, 301346293248000, 5419293175296000, 102966570330624000, 2059331406612480000]

cp's OEIS Frontend

A060726 For n >= 1, a(n) is the number of permutations in the symmetric group S_n such that their cycle decomposition contains no 6-cycle.

Table of values

List of values