T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.

A187356

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.

Terms

    a(0) =5056a(1) =7776a(2) =7776a(3) =440192a(4) =89150a(5) =440192a(6) =2332924a(7) =2103856a(8) =2103856a(9) =2332924a(10) =52776112a(11) =39189180a(12) =393309192a(13) =39189180a(14) =52776112a(15) =460096436a(16) =823266330

External references