Number of n X n 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302361
Number of n X n 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =31a(3) =77a(4) =6580a(5) =330505a(6) =188443738a(7) =169314399506
External references
- oeis: A302361