A252573 - cp's OEIS frontend

A252573 Number of (n+2) X (7+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 1 2 5 6 or 7.

n	a(n)
1	9936
2	47737
3	208375
4	959944
5	6590930
6	31059674
7	155864925
8	994640586
9	4728064653
10	24277561799
11	152128655769
12	724041200896
13	3737920882959
14	23334351446462
15	111056940261198
16	574039942229995
17	3581491498190689

[9936, 47737, 208375, 959944, 6590930, 31059674, 155864925, 994640586, 4728064653, 24277561799, 152128655769, 724041200896, 3737920882959, 23334351446462, 111056940261198, 574039942229995, 3581491498190689]

cp's OEIS Frontend

A252573 Number of (n+2) X (7+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 1 2 5 6 or 7.

Table of values

List of values