T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

A257426

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Terms

    a(0) =512a(1) =2616a(2) =2616a(3) =10684a(4) =7652a(5) =10684a(6) =41140a(7) =27244a(8) =30309a(9) =41140a(10) =150016a(11) =103575a(12) =117324a(13) =119393a(14) =150016a(15) =514920a(16) =367929a(17) =450756a(18) =449022a(19) =403951a(20) =514920a(21) =1700100a(22) =1246585a(23) =1557227a(24) =1770206a(25) =1290910a(26) =1293242a(27) =1700100a(28) =5487356a(29) =4137316

External references