A202979 - cp's OEIS frontend

A202979 T(n,k)=Number of nXk 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	4
9	4
10	1
11	1
12	7
13	17
14	7
15	1
16	1
17	14
18	58
19	58
20	14
21	1
22	1
23	31
24	215
25	385
26	215
27	31
28	1
29	1
30	69
31	866
32	2582
33	2582
34	866
35	69
36	1
37	1
38	155
39	3507
40	17740
41	31380
42	17740
43	3507
44	155
45	1
46	1
47	354
48	14120
49	122468
50	379788
51	379788
52	122468
53	14120
54	354
55	1
56	1
57	814
58	56921
59	846908

[1, 1, 1, 1, 2, 1, 1, 4, 4, 1, 1, 7, 17, 7, 1, 1, 14, 58, 58, 14, 1, 1, 31, 215, 385, 215, 31, 1, 1, 69, 866, 2582, 2582, 866, 69, 1, 1, 155, 3507, 17740, 31380, 17740, 3507, 155, 1, 1, 354, 14120, 122468, 379788, 379788, 122468, 14120, 354, 1, 1, 814, 56921, 846908]

cp's OEIS Frontend

A202979 T(n,k)=Number of nXk 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.

Table of values

List of values