Number of (n+2)X(5+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime.
A252037
Number of (n+2)X(5+2) 0..4 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime.
Terms
- a(0) =327823a(1) =710758a(2) =309509a(3) =958171a(4) =5198219a(5) =30060975a(6) =97038957a(7) =598042259a(8) =3791553994a(9) =11804694219a(10) =79380555505a(11) =528988352147
External references
- oeis: A252037