T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum.

A187600

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum.

Terms

    a(0) =12780a(1) =226450a(2) =226450a(3) =4034228a(4) =8074640a(5) =4034228a(6) =71799716a(7) =292759792a(8) =292759792a(9) =71799716a(10) =1277660426a(11) =10573764644a(12) =21834817212a(13) =10573764644a(14) =1277660426a(15) =22737087954a(16) =381716567508

External references