Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.

A251480

Number of (n+1)X(6+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.

Terms

    a(0) =218854a(1) =2696488a(2) =30592799a(3) =261990105a(4) =2095872247a(5) =13874159417a(6) =87400242458a(7) =484930994600

External references