A237574 - cp's OEIS frontend

A237574 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

n	a(n)
1	256
2	1876
3	1876
4	13924
5	24332
6	13924
7	103264
8	315664
9	315664
10	103264
11	769680
12	4146324
13	7379204
14	4146324
15	769680
16	5705156
17	54395184
18	173478980
19	173478980
20	54395184
21	5705156
22	42501300
23	712810024
24	4093774632
25	7415425124
26	4093774632

[256, 1876, 1876, 13924, 24332, 13924, 103264, 315664, 315664, 103264, 769680, 4146324, 7379204, 4146324, 769680, 5705156, 54395184, 173478980, 173478980, 54395184, 5705156, 42501300, 712810024, 4093774632, 7415425124, 4093774632]

cp's OEIS Frontend

A237574 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.

Table of values

List of values