T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically.

A258910

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically.

Terms

    a(0) =512a(1) =2736a(2) =2736a(3) =11872a(4) =15416a(5) =11872a(6) =51856a(7) =86968a(8) =86968a(9) =51856a(10) =222400a(11) =510095a(12) =659792a(13) =510095a(14) =222400a(15) =914112a(16) =2769733a(17) =5271330a(18) =5271330a(19) =2769733a(20) =914112a(21) =3644672a(22) =14722533a(23) =38603552a(24) =58411404a(25) =38603552a(26) =14722533a(27) =3644672a(28) =14254784

External references