A374262 - cp's OEIS frontend

A374262 Number of permutations of [n] such that the number of cycles of length k is a multiple of k for every k.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	16
6	46
7	106
8	316
9	3564
10	27756
11	141516
12	556656
13	6678816
14	73015944
15	521124696
16	6144018336
17	75200767776
18	677927254176
19	4642387894944
20	75217104395136
21	1167068528384256
22	12348761954020416
23	97377968145352896
24	882819252604721664
25	66882151986021043200

[1, 1, 1, 1, 4, 16, 46, 106, 316, 3564, 27756, 141516, 556656, 6678816, 73015944, 521124696, 6144018336, 75200767776, 677927254176, 4642387894944, 75217104395136, 1167068528384256, 12348761954020416, 97377968145352896, 882819252604721664, 66882151986021043200]

cp's OEIS Frontend

A374262 Number of permutations of [n] such that the number of cycles of length k is a multiple of k for every k.

Table of values

List of values