A215228 - cp's OEIS frontend

A215228 T(n,k) = number of length-n 0..k arrays connected end-around, with no sequence of L elements immediately followed by itself (periodic "squarefree").

n	a(n)
1	2
2	3
3	2
4	4
5	6
6	0
7	5
8	12
9	6
10	0
11	6
12	20
13	24
14	12
15	0
16	7
17	30
18	60
19	72
20	0
21	0
22	8
23	42
24	120
25	240
26	120
27	18
28	0
29	9
30	56
31	210
32	600
33	720
34	408
35	0
36	0
37	10
38	72
39	336
40	1260
41	2520
42	2940
43	840
44	24
45	0
46	11
47	90
48	504
49	2352
50	6720
51	12600
52	10080
53	2448
54	0
55	0
56	12
57	110
58	720
59	4032
60	15120
61	40110
62	57960
63	38640

[2, 3, 2, 4, 6, 0, 5, 12, 6, 0, 6, 20, 24, 12, 0, 7, 30, 60, 72, 0, 0, 8, 42, 120, 240, 120, 18, 0, 9, 56, 210, 600, 720, 408, 0, 0, 10, 72, 336, 1260, 2520, 2940, 840, 24, 0, 11, 90, 504, 2352, 6720, 12600, 10080, 2448, 0, 0, 12, 110, 720, 4032, 15120, 40110, 57960, 38640]

cp's OEIS Frontend

A215228 T(n,k) = number of length-n 0..k arrays connected end-around, with no sequence of L elements immediately followed by itself (periodic "squarefree").

Table of values

List of values