Number of (n+2)X9 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally.
A204407
Number of (n+2)X9 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) =8916413698a(1) =70339685822a(2) =390091281543
External references
- oeis: A204407