A268781 - cp's OEIS frontend

A268781 T(n,k) = Number of n X k binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two no more than once.

n	a(n)
1	2
2	4
3	4
4	7
5	11
6	7
7	13
8	26
9	26
10	13
11	23
12	65
13	91
14	65
15	23
16	41
17	148
18	316
19	316
20	148
21	41
22	72
23	343
24	1031
25	1462
26	1031
27	343
28	72
29	126
30	766
31	3354
32	6383
33	6383
34	3354
35	766
36	126
37	219
38	1709
39	10615
40	27531
41	38483
42	27531
43	10615
44	1709
45	219
46	379
47	3752
48	33344
49	115391
50	224960

[2, 4, 4, 7, 11, 7, 13, 26, 26, 13, 23, 65, 91, 65, 23, 41, 148, 316, 316, 148, 41, 72, 343, 1031, 1462, 1031, 343, 72, 126, 766, 3354, 6383, 6383, 3354, 766, 126, 219, 1709, 10615, 27531, 38483, 27531, 10615, 1709, 219, 379, 3752, 33344, 115391, 224960]

cp's OEIS Frontend

A268781 T(n,k) = Number of n X k binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two no more than once.

Table of values

List of values