Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to 1 2 3 4 5 6 or 7.
A251365
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to 1 2 3 4 5 6 or 7.
Terms
- a(0) =79a(1) =17969a(2) =35257505a(3) =597108952883
External references
- oeis: A251365