Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to 2 4 or 6.
A251327
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to 2 4 or 6.
Terms
- a(0) =39a(1) =1115a(2) =75391a(3) =13857083a(4) =8130801167
External references
- oeis: A251327