A245980 - cp's OEIS frontend

A245980 Number A(n,k) of pairs of endofunctions f, g on [n] satisfying g^k(f(i)) = f(i) for all i in [n]; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	16
6	1
7	1
8	6
9	729
10	1
11	1
12	10
13	87
14	65536
15	1
16	1
17	6
18	213
19	2200
20	9765625
21	1
22	1
23	10
24	141
25	8056
26	84245
27	2176782336
28	1
29	1
30	6
31	213
32	6184
33	465945
34	4492656
35	678223072849
36	1
37	1
38	10
39	87
40	9592
41	387545
42	37823616
43	315937195
44	281474976710656

[1, 1, 1, 1, 1, 16, 1, 1, 6, 729, 1, 1, 10, 87, 65536, 1, 1, 6, 213, 2200, 9765625, 1, 1, 10, 141, 8056, 84245, 2176782336, 1, 1, 6, 213, 6184, 465945, 4492656, 678223072849, 1, 1, 10, 87, 9592, 387545, 37823616, 315937195, 281474976710656]

cp's OEIS Frontend

A245980 Number A(n,k) of pairs of endofunctions f, g on [n] satisfying g^k(f(i)) = f(i) for all i in [n]; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values