T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.

A251317

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.

Terms

    a(0) =10a(1) =25a(2) =25a(3) =61a(4) =79a(5) =61a(6) =149a(7) =238a(8) =238a(9) =149a(10) =365a(11) =720a(12) =890a(13) =720a(14) =365a(15) =894a(16) =2199a(17) =3369a(18) =3369a(19) =2199a(20) =894a(21) =2189a(22) =6717a(23) =12859a(24) =16006a(25) =12859a(26) =6717a(27) =2189a(28) =5360a(29) =20484

External references