Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock summing to 3 4 5 6 7 8 or 9.
A251502
Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock summing to 3 4 5 6 7 8 or 9.
Terms
- a(0) =46684a(1) =8888108a(2) =1690296520a(3) =321542579960
External references
- oeis: A251502