A066387 - cp's OEIS frontend

A066387 Triangle T(n,m) (1<=m<=n) giving number of maps f:N -> N such that f^m(X)=X+n for all natural numbers X.

n	a(n)
1	1
2	1
3	2
4	1
5	0
6	6
7	1
8	12
9	0
10	24
11	1
12	0
13	0
14	0
15	120
16	1
17	120
18	360
19	0
20	0
21	720
22	1
23	0
24	0
25	0
26	0
27	0
28	5040
29	1
30	1680
31	0
32	20160
33	0
34	0
35	0
36	40320
37	1
38	0
39	60480
40	0
41	0
42	0
43	0
44	0
45	362880
46	1
47	30240
48	0
49	0
50	1814400
51	0
52	0
53	0
54	0
55	3628800
56	1
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	0
65	0
66	39916800

[1, 1, 2, 1, 0, 6, 1, 12, 0, 24, 1, 0, 0, 0, 120, 1, 120, 360, 0, 0, 720, 1, 0, 0, 0, 0, 0, 5040, 1, 1680, 0, 20160, 0, 0, 0, 40320, 1, 0, 60480, 0, 0, 0, 0, 0, 362880, 1, 30240, 0, 0, 1814400, 0, 0, 0, 0, 3628800, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 39916800]

cp's OEIS Frontend

A066387 Triangle T(n,m) (1<=m<=n) giving number of maps f:N -> N such that f^m(X)=X+n for all natural numbers X.

Table of values

List of values