A252531 - cp's OEIS frontend

A252531 Number of (n+2) X (7+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	1200
2	1468
3	2404
4	3160
5	11456
6	19232
7	25280
8	91648
9	153856
10	202240
11	733184
12	1230848
13	1617920
14	5865472
15	9846784
16	12943360
17	46923776
18	78774272
19	103546880
20	375390208
21	630194176
22	828375040
23	3003121664
24	5041553408
25	6627000320

[1200, 1468, 2404, 3160, 11456, 19232, 25280, 91648, 153856, 202240, 733184, 1230848, 1617920, 5865472, 9846784, 12943360, 46923776, 78774272, 103546880, 375390208, 630194176, 828375040, 3003121664, 5041553408, 6627000320]

cp's OEIS Frontend

A252531 Number of (n+2) X (7+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