Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303078
Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =32a(3) =90a(4) =11767a(5) =409478a(6) =266882021a(7) =218955384065
External references
- oeis: A303078