A301615 - cp's OEIS frontend

A301615 T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.

n	a(n)
1	0
2	1
3	1
4	1
5	3
6	1
7	2
8	11
9	11
10	2
11	3
12	34
13	62
14	34
15	3
16	5
17	111
18	367
19	367
20	111
21	5
22	8
23	361
24	2131
25	3816
26	2131
27	361
28	8
29	13
30	1172
31	12467
32	40085
33	40085
34	12467
35	1172
36	13
37	21
38	3809
39	72758
40	421025
41	758338
42	421025
43	72758
44	3809
45	21
46	34
47	12377
48	425003
49	4422826
50	14345706
51	14345706

[0, 1, 1, 1, 3, 1, 2, 11, 11, 2, 3, 34, 62, 34, 3, 5, 111, 367, 367, 111, 5, 8, 361, 2131, 3816, 2131, 361, 8, 13, 1172, 12467, 40085, 40085, 12467, 1172, 13, 21, 3809, 72758, 421025, 758338, 421025, 72758, 3809, 21, 34, 12377, 425003, 4422826, 14345706, 14345706]

cp's OEIS Frontend

A301615 T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.

Table of values

List of values