T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

A253350

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Terms

    a(0) =16a(1) =47a(2) =47a(3) =125a(4) =173a(5) =125a(6) =335a(7) =724a(8) =735a(9) =335a(10) =907a(11) =3160a(12) =4800a(13) =3192a(14) =907a(15) =2470a(16) =13810a(17) =31156a(18) =30920a(19) =13917a(20) =2470a(21) =6740a(22) =60368a(23) =200740a(24) =305872a(25) =199512a(26) =60779a(27) =6740a(28) =18406a(29) =263920

External references