A217876 - cp's OEIS frontend

A217876 Triangle read by rows: distribution of adjacent transpositions in involutions.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	5
7	4
8	1
9	13
10	10
11	3
12	37
13	29
14	9
15	1
16	112
17	88
18	28
19	4
20	363
21	288
22	96
23	16
24	1
25	1235
26	984
27	336
28	60
29	5
30	4427
31	3555
32	1248
33	240
34	25
35	1
36	16526
37	13334
38	4764
39	956
40	110
41	6
42	64351
43	52252
44	19023
45	3984
46	505
47	36
48	1
49	259471
50	211646
51	78101
52	16836
53	2261
54	182
55	7

[1, 1, 1, 1, 2, 2, 5, 4, 1, 13, 10, 3, 37, 29, 9, 1, 112, 88, 28, 4, 363, 288, 96, 16, 1, 1235, 984, 336, 60, 5, 4427, 3555, 1248, 240, 25, 1, 16526, 13334, 4764, 956, 110, 6, 64351, 52252, 19023, 3984, 505, 36, 1, 259471, 211646, 78101, 16836, 2261, 182, 7]

cp's OEIS Frontend

A217876 Triangle read by rows: distribution of adjacent transpositions in involutions.

Table of values

List of values