A203378 - cp's OEIS frontend

A203378 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.

n	a(n)
1	12
2	36
3	36
4	108
5	164
6	108
7	324
8	748
9	748
10	324
11	972
12	3412
13	5208
14	3412
15	972
16	2916
17	15564
18	36300
19	36300
20	15564
21	2916
22	8748
23	70996
24	253068
25	387324
26	253068
27	70996
28	8748
29	26244
30	323852
31	1764360
32	4136292
33	4136292
34	1764360
35	323852
36	26244
37	78732
38	1477268

[12, 36, 36, 108, 164, 108, 324, 748, 748, 324, 972, 3412, 5208, 3412, 972, 2916, 15564, 36300, 36300, 15564, 2916, 8748, 70996, 253068, 387324, 253068, 70996, 8748, 26244, 323852, 1764360, 4136292, 4136292, 1764360, 323852, 26244, 78732, 1477268]

cp's OEIS Frontend

A203378 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.

Table of values

List of values