Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 3 neighboring 1's.
A296581
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 3 neighboring 1's.
Terms
- a(0) =2a(1) =9a(2) =83a(3) =2458a(4) =214830a(5) =52756072a(6) =39585589653
External references
- oeis: A296581