T(n,k)=Half the number of (n+2)X(k+2) binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum.

A187964

T(n,k)=Half the number of (n+2)X(k+2) binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum.

Terms

    a(0) =256a(1) =1408a(2) =1408a(3) =7744a(4) =8768a(5) =7744a(6) =42592a(7) =53728a(8) =53728a(9) =42592a(10) =240064a(11) =322128a(12) =359488a(13) =322128a(14) =240064a(15) =1353088a(16) =2092928a(17) =2292560a(18) =2292560a(19) =2092928a(20) =1353088a(21) =7626496a(22) =13520976a(23) =16890700a(24) =15189800a(25) =16890700a(26) =13520976a(27) =7626496a(28) =42683776

External references