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 or vertically.

A204501

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 or vertically.

Terms

    a(0) =3971a(1) =46458a(2) =46458a(3) =699151a(4) =339311a(5) =699151a(6) =6047817a(7) =3418839a(8) =3418839a(9) =6047817a(10) =65606908a(11) =42736635a(12) =18296109a(13) =42736635a(14) =65606908a(15) =797822969a(16) =493398441a(17) =306913392a(18) =306913392a(19) =493398441a(20) =797822969a(21) =8067170432a(22) =5506995671

External references