Number of nX7 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
A301614
Number of nX7 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =1172a(2) =72758a(3) =4422826a(4) =271301458a(5) =16632517333
External references
- oeis: A301614