Number of (n+2)X(3+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.
A233798
Number of (n+2)X(3+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.
Terms
- a(0) =371832256a(1) =192011782168
External references
- oeis: A233798