A253294 - cp's OEIS frontend

A253294 T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.

n	a(n)
1	81
2	558
3	558
4	3844
5	3600
6	3844
7	26784
8	23546
9	23546
10	26784
11	186624
12	167832
13	140536
14	167832
15	186624
16	1296000
17	1184928
18	1029888
19	1029888
20	1184928
21	1296000
22	9000000
23	8243488
24	7431136
25	8153960
26	7431136
27	8243488
28	9000000
29	62568000
30	57474376

[81, 558, 558, 3844, 3600, 3844, 26784, 23546, 23546, 26784, 186624, 167832, 140536, 167832, 186624, 1296000, 1184928, 1029888, 1029888, 1184928, 1296000, 9000000, 8243488, 7431136, 8153960, 7431136, 8243488, 9000000, 62568000, 57474376]

cp's OEIS Frontend

A253294 T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.

Table of values

List of values