Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to 3 6 or 9.
A251298
Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to 3 6 or 9.
Terms
- a(0) =361244a(1) =9240612a(2) =280654684a(3) =10472034724a(4) =475709341972
External references
- oeis: A251298