Number of (n+2) X (2+2) 0..2 arrays with no increasing sequence of length 3 vertically, diagonally downwards or antidiagonally downwards.
A234375
Number of (n+2) X (2+2) 0..2 arrays with no increasing sequence of length 3 vertically, diagonally downwards or antidiagonally downwards.
Terms
- a(0) =406416a(1) =24485940a(2) =1443868938a(3) =84764693441
External references
- oeis: A234375