A252538 - cp's OEIS frontend

A252538 Number of (6+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.

n	a(n)
1	649
2	964
3	1748
4	2504
5	7136
6	13184
7	19232
8	54656
9	102272
10	150656
11	427520
12	805376
13	1192448
14	3381248
15	6391808
16	9488384
17	26894336
18	50929664
19	75702272
20	214532096
21	406618112
22	604798976
23	1713766400
24	3249668096
25	4835115008
26	13700169728

[649, 964, 1748, 2504, 7136, 13184, 19232, 54656, 102272, 150656, 427520, 805376, 1192448, 3381248, 6391808, 9488384, 26894336, 50929664, 75702272, 214532096, 406618112, 604798976, 1713766400, 3249668096, 4835115008, 13700169728]

cp's OEIS Frontend

A252538 Number of (6+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.

Table of values

List of values