A216718 - cp's OEIS frontend

A216718 Triangle read by rows: number of circular permutations of [1..n] with k progressions of rise 1, distance 1 and length 3 (n >= 3, k >= 0).

n	a(n)
2	1
3	1
4	1
5	5
6	0
7	1
8	20
9	3
10	0
11	1
12	102
13	14
14	3
15	0
16	1
17	627
18	72
19	17
20	3
21	0
22	1
23	4461
24	468
25	87
26	20
27	3
28	0
29	1
30	36155
31	3453
32	582
33	103
34	23
35	3
36	0
37	1
38	328849
39	28782
40	4395
41	704
42	120
43	26
44	3
45	0
46	1
47	3317272
48	267831
49	37257
50	5435
51	834
52	138
53	29
54	3
55	0
56	1

[1, 1, 1, 5, 0, 1, 20, 3, 0, 1, 102, 14, 3, 0, 1, 627, 72, 17, 3, 0, 1, 4461, 468, 87, 20, 3, 0, 1, 36155, 3453, 582, 103, 23, 3, 0, 1, 328849, 28782, 4395, 704, 120, 26, 3, 0, 1, 3317272, 267831, 37257, 5435, 834, 138, 29, 3, 0, 1]

cp's OEIS Frontend

A216718 Triangle read by rows: number of circular permutations of [1..n] with k progressions of rise 1, distance 1 and length 3 (n >= 3, k >= 0).

Table of values

List of values