Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to 2 4 or 6.
A251330
Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to 2 4 or 6.
Terms
- a(0) =753a(1) =7393a(2) =75391a(3) =801579a(4) =8863633a(5) =101497397a(6) =1196729319a(7) =14442382927a(8) =177420001949
External references
- oeis: A251330