A178575 - cp's OEIS frontend

A178575 Number of permutations of {1,2,...,3n} whose cycle lengths are all divisible by 3.

n	a(n)
0	1
1	2
2	160
3	62720
4	68992000
5	163235072000
6	710399033344000
7	5129081020743680000
8	57096929922918645760000
9	927825111247427993600000000
10	21095031729321522862489600000000
11	648714415740095471067280179200000000
12	26246985260844262759382156050432000000000

[1, 2, 160, 62720, 68992000, 163235072000, 710399033344000, 5129081020743680000, 57096929922918645760000, 927825111247427993600000000, 21095031729321522862489600000000, 648714415740095471067280179200000000, 26246985260844262759382156050432000000000]

cp's OEIS Frontend

A178575 Number of permutations of {1,2,...,3n} whose cycle lengths are all divisible by 3.

Table of values

List of values