A216722 - cp's OEIS frontend

A216722 Triangle read by rows: number of circular permutations of [1..n] with k modular progressions of rise 1, distance 1 and length 3 (n >= 3, 0 <= k <= n).

n	a(n)
3	1
4	0
5	0
6	1
7	5
8	0
9	0
10	0
11	1
12	18
13	5
14	0
15	0
16	0
17	1
18	95
19	18
20	6
21	0
22	0
23	0
24	1
25	600
26	84
27	28
28	7
29	0
30	0
31	0
32	1
33	4307
34	568
35	116
36	40
37	8
38	0
39	0
40	0
41	1
42	35168
43	4122
44	810
45	156
46	54
47	9
48	0
49	0
50	0
51	1
52	321609
53	33910
54	5975
55	1100
56	205
57	70
58	10
59	0
60	0
61	0
62	1

[1, 0, 0, 1, 5, 0, 0, 0, 1, 18, 5, 0, 0, 0, 1, 95, 18, 6, 0, 0, 0, 1, 600, 84, 28, 7, 0, 0, 0, 1, 4307, 568, 116, 40, 8, 0, 0, 0, 1, 35168, 4122, 810, 156, 54, 9, 0, 0, 0, 1, 321609, 33910, 5975, 1100, 205, 70, 10, 0, 0, 0, 1]

cp's OEIS Frontend

A216722 Triangle read by rows: number of circular permutations of [1..n] with k modular progressions of rise 1, distance 1 and length 3 (n >= 3, 0 <= k <= n).

Table of values

List of values