Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318065
Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =3a(1) =249a(2) =4003a(3) =76927a(4) =1405892a(5) =25994502a(6) =479322719a(7) =8844178475a(8) =163160290206
External references
- oeis: A318065