Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a prime.

A251409

Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a prime.

Terms

    a(0) =883018a(1) =136033976a(2) =20821486740

External references