Number of nXn 0..1 arrays with every element unequal to 0, 1, 2 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318069
Number of nXn 0..1 arrays with every element unequal to 0, 1, 2 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =6a(2) =18a(3) =73a(4) =316a(5) =3029a(6) =46884a(7) =935951a(8) =38183961a(9) =2877277695a(10) =323244675173
External references
- oeis: A318069