Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303618
Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =38a(3) =325a(4) =37910a(5) =6446485a(6) =6323564388
External references
- oeis: A303618