Number of (n+2)X(5+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.
A251882
Number of (n+2)X(5+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.
Terms
- a(0) =117744a(1) =242531a(2) =848547a(3) =4243461a(4) =17612152a(5) =96631623a(6) =513228578a(7) =2133116461a(8) =12086844180a(9) =67036259385a(10) =280092161055
External references
- oeis: A251882