Number of (n+1) X (3+1) 0..2 arrays with every 2 X 2 subblock summing to 1 2 3 4 5 6 or 7.
A251368
Number of (n+1) X (3+1) 0..2 arrays with every 2 X 2 subblock summing to 1 2 3 4 5 6 or 7.
Terms
- a(0) =6113a(1) =464393a(2) =35257505a(3) =2676962017a(4) =203249994369
External references
- oeis: A251368