Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302380
Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =2208a(2) =127535a(3) =8334338a(4) =535192095a(5) =34271733937
External references
- oeis: A302380