A252569 - cp's OEIS frontend

A252569 Number of (n+2)X(3+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	1069
2	1795
3	4168
4	10885
5	34532
6	96099
7	275252
8	896803
9	2561903
10	7521424
11	25021976
12	72374863
13	214845510
14	722910315
15	2103362049
16	6276229910
17	21234443167
18	61951956820
19	185297812626
20	628515657355
21	1835985520369
22	5497328348638

[1069, 1795, 4168, 10885, 34532, 96099, 275252, 896803, 2561903, 7521424, 25021976, 72374863, 214845510, 722910315, 2103362049, 6276229910, 21234443167, 61951956820, 185297812626, 628515657355, 1835985520369, 5497328348638]

cp's OEIS Frontend

A252569 Number of (n+2)X(3+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