T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally.

A204408

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally.

Terms

    a(0) =4293a(1) =47883a(2) =47883a(3) =719125a(4) =347247a(5) =719125a(6) =6579664a(7) =3588983a(8) =3588983a(9) =6579664a(10) =70193731a(11) =45603178a(12) =18913491a(13) =45603178a(14) =70193731a(15) =852798050a(16) =518498299a(17) =316877238a(18) =316877238a(19) =518498299a(20) =852798050a(21) =8916413698a(22) =5787193185

External references