A060727 - cp's OEIS frontend

A060727 For n >= 1 a(n) is the number of permutations in the symmetric group S_n such that their cycle decomposition contains no 7-cycle.

n	a(n)
0	1
1	1
2	2
3	6
4	24
5	120
6	720
7	4320
8	34560
9	311040
10	3110400
11	34214400
12	410572800
13	5337446400
14	75613824000
15	1134207360000
16	18147317760000
17	308504401920000
18	5553079234560000
19	105508505456640000
20	2110170109132800000
21	44288746761093120000
22	974352428744048640000

[1, 1, 2, 6, 24, 120, 720, 4320, 34560, 311040, 3110400, 34214400, 410572800, 5337446400, 75613824000, 1134207360000, 18147317760000, 308504401920000, 5553079234560000, 105508505456640000, 2110170109132800000, 44288746761093120000, 974352428744048640000]

cp's OEIS Frontend

A060727 For n >= 1 a(n) is the number of permutations in the symmetric group S_n such that their cycle decomposition contains no 7-cycle.

Table of values

List of values