Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
A301783
Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Terms
- a(0) =64a(1) =8192a(2) =772272a(3) =75632400a(4) =7381982784a(5) =720677122368
External references
- oeis: A301783