A306234 - cp's OEIS frontend

A306234 Number T(n,k) of occurrences of k in a (signed) displacement set of a permutation of [n] divided by |k|!; triangle T(n,k), n>=1, 1-n<=k<=n-1, read by rows.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	3
7	4
8	3
9	1
10	1
11	5
12	13
13	15
14	13
15	5
16	1
17	1
18	7
19	28
20	67
21	76
22	67
23	28
24	7
25	1
26	1
27	9
28	49
29	179
30	411
31	455
32	411
33	179
34	49
35	9
36	1
37	1
38	11
39	76
40	375
41	1306
42	2921
43	3186
44	2921
45	1306
46	375
47	76
48	11
49	1
50	1
51	13
52	109
53	679
54	3181
55	10757
56	23633
57	25487
58	23633
59	10757
60	3181
61	679
62	109
63	13
64	1

[1, 1, 1, 1, 1, 3, 4, 3, 1, 1, 5, 13, 15, 13, 5, 1, 1, 7, 28, 67, 76, 67, 28, 7, 1, 1, 9, 49, 179, 411, 455, 411, 179, 49, 9, 1, 1, 11, 76, 375, 1306, 2921, 3186, 2921, 1306, 375, 76, 11, 1, 1, 13, 109, 679, 3181, 10757, 23633, 25487, 23633, 10757, 3181, 679, 109, 13, 1]

cp's OEIS Frontend

A306234 Number T(n,k) of occurrences of k in a (signed) displacement set of a permutation of [n] divided by |k|!; triangle T(n,k), n>=1, 1-n<=k<=n-1, read by rows.

Table of values

List of values