Number of (n+2)X5 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally.
A204403
Number of (n+2)X5 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) =719125a(1) =3588983a(2) =18913491a(3) =316877238a(4) =3226550173a(5) =30090522927a(6) =390091281543
External references
- oeis: A204403