Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to a prime.
A251457
Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to a prime.
Terms
- a(0) =2679006a(1) =658509724a(2) =154267520858
External references
- oeis: A251457