A222828 - cp's OEIS frontend

A222828 T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

n	a(n)
1	1
2	1
3	1
4	2
5	8
6	2
7	11
8	80
9	80
10	11
11	34
12	1154
13	2695
14	1154
15	34
16	131
17	14388
18	163059
19	163059
20	14388
21	131
22	438
23	200082
24	4990235
25	23664739
26	4990235
27	200082
28	438
29	2150
30	2652496
31	324288311
32	3489313607
33	3489313607
34	324288311
35	2652496
36	2150
37	7676
38	36622104

[1, 1, 1, 2, 8, 2, 11, 80, 80, 11, 34, 1154, 2695, 1154, 34, 131, 14388, 163059, 163059, 14388, 131, 438, 200082, 4990235, 23664739, 4990235, 200082, 438, 2150, 2652496, 324288311, 3489313607, 3489313607, 324288311, 2652496, 2150, 7676, 36622104]

cp's OEIS Frontend

A222828 T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Table of values

List of values