Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
A301781
Number of nX5 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) =16a(1) =512a(2) =13616a(3) =369936a(4) =10033408a(5) =272151040a(6) =7381982784a(7) =200232929792
External references
- oeis: A301781