T(n,k)=Number of (n+2)X(k+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.

A251885

T(n,k)=Number of (n+2)X(k+2) 0..4 arrays with every 3X3 subblock row and column sum prime and every diagonal and antidiagonal sum nonprime.

Terms

    a(0) =5495a(1) =11492a(2) =11492a(3) =20025a(4) =16857a(5) =20025a(6) =49529a(7) =36085a(8) =36085a(9) =49529a(10) =117744a(11) =100787a(12) =94046a(13) =100787a(14) =117744a(15) =256604a(16) =242531a(17) =237142a(18) =237142a(19) =242531a(20) =256604a(21) =676969a(22) =725325a(23) =848547a(24) =1036785a(25) =848547a(26) =725325a(27) =676969a(28) =1694929a(29) =2472269

External references