Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.
A251477
Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.
Terms
- a(0) =2908a(1) =24182a(2) =183485a(3) =1096596a(4) =6216665a(5) =30592799a(6) =146035292a(7) =638001419a(8) =2737224051a(9) =11079334278a(10) =44353044487a(11) =170687762327a(12) =652521483414
External references
- oeis: A251477