Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a prime.
A251405
Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a prime.
Terms
- a(0) =1230a(1) =19654a(2) =313396a(3) =5037428a(4) =80717134a(5) =1297591952a(6) =20821486740a(7) =334615097454
External references
- oeis: A251405