A252578 - cp's OEIS frontend

A252578 Number of (4+2)X(n+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	1469
2	3286
3	10885
4	25882
5	107651
6	395500
7	959944
8	4006901
9	14816006
10	35925302
11	149837853
12	555593556
13	1346798430
14	5611997409
15	20856438080
16	50548611374
17	210462210945
18	783856206336
19	1899488450222
20	7902528627913
21	29493363498624

[1469, 3286, 10885, 25882, 107651, 395500, 959944, 4006901, 14816006, 35925302, 149837853, 555593556, 1346798430, 5611997409, 20856438080, 50548611374, 210462210945, 783856206336, 1899488450222, 7902528627913, 29493363498624]

cp's OEIS Frontend

A252578 Number of (4+2)X(n+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