A239144 - cp's OEIS frontend

A239144 Number T(n,k) of self-inverse permutations p on [n] such that all transposition distances (if any) are larger than k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	1
6	4
7	2
8	1
9	1
10	10
11	5
12	2
13	1
14	1
15	26
16	13
17	5
18	2
19	1
20	1
21	76
22	37
23	15
24	5
25	2
26	1
27	1
28	232
29	112
30	47
31	15
32	5
33	2
34	1
35	1
36	764
37	363
38	155
39	52
40	15
41	5
42	2
43	1
44	1
45	2620
46	1235
47	532
48	188
49	52
50	15
51	5
52	2
53	1
54	1
55	9496
56	4427
57	1910
58	704
59	203
60	52
61	15
62	5
63	2
64	1
65	1

[1, 1, 1, 2, 1, 1, 4, 2, 1, 1, 10, 5, 2, 1, 1, 26, 13, 5, 2, 1, 1, 76, 37, 15, 5, 2, 1, 1, 232, 112, 47, 15, 5, 2, 1, 1, 764, 363, 155, 52, 15, 5, 2, 1, 1, 2620, 1235, 532, 188, 52, 15, 5, 2, 1, 1, 9496, 4427, 1910, 704, 203, 52, 15, 5, 2, 1, 1]

cp's OEIS Frontend

A239144 Number T(n,k) of self-inverse permutations p on [n] such that all transposition distances (if any) are larger than k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values