Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime.
A252036
Number of (n+2)X(4+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime.
Terms
- a(0) =112929a(1) =183494a(2) =85570a(3) =242893a(4) =958171a(5) =3353508a(6) =10165927a(7) =43093018a(8) =160833703a(9) =479755164a(10) =2129630164a(11) =8304035822a(12) =24338771563a(13) =112393455254a(14) =453850241919
External references
- oeis: A252036