A252571 - cp's OEIS frontend

A252571 Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7.

n	a(n)
1	2985
2	8980
3	30532
4	107651
5	498696
6	1887578
7	7115253
8	31894631
9	122743127
10	470091119
11	2102294795
12	8141112826
13	31313195196
14	140219334014
15	544334882366
16	2096632656296
17	9398676402136
18	36523929959167
19	140756808264359

[2985, 8980, 30532, 107651, 498696, 1887578, 7115253, 31894631, 122743127, 470091119, 2102294795, 8141112826, 31313195196, 140219334014, 544334882366, 2096632656296, 9398676402136, 36523929959167, 140756808264359]

cp's OEIS Frontend

A252571 Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7.

Table of values

List of values