T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.

A251467

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.

Terms

    a(0) =46a(1) =168a(2) =168a(3) =602a(4) =738a(5) =602a(6) =1908a(7) =3142a(8) =3142a(9) =1908a(10) =5926a(11) =11134a(12) =15719a(13) =11134a(14) =5926a(15) =17424a(16) =38509a(17) =62309a(18) =62309a(19) =38509a(20) =17424a(21) =50306a(22) =120982a(23) =239572a(24) =268559a(25) =239572a(26) =120982a(27) =50306a(28) =141792a(29) =373380

External references