T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1.

A255149

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1.

Terms

    a(0) =47a(1) =115a(2) =115a(3) =302a(4) =371a(5) =302a(6) =784a(7) =1310a(8) =1310a(9) =784a(10) =2086a(11) =4576a(12) =6271a(13) =4576a(14) =2086a(15) =5661a(16) =16386a(17) =29731a(18) =29731a(19) =16386a(20) =5661a(21) =15406a(22) =59681a(23) =143993a(24) =190731a(25) =143993a(26) =59681a(27) =15406a(28) =41999a(29) =217262

External references