A252069 - cp's OEIS frontend

A252069 Number of (n+2) X (2+2) 0..2 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

n	a(n)
1	105
2	152
3	419
4	1135
5	3029
6	8352
7	23091
8	63460
9	174704
10	481577
11	1326679
12	3654425
13	10068184
14	27738117
15	76416462
16	210524456
17	579990085
18	1597852627
19	4402027937
20	12127445290
21	33410714339
22	92045405682
23	253582052742
24	698610194521

[105, 152, 419, 1135, 3029, 8352, 23091, 63460, 174704, 481577, 1326679, 3654425, 10068184, 27738117, 76416462, 210524456, 579990085, 1597852627, 4402027937, 12127445290, 33410714339, 92045405682, 253582052742, 698610194521]

cp's OEIS Frontend

A252069 Number of (n+2) X (2+2) 0..2 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

Table of values

List of values