Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.
A251478
Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.
Terms
- a(0) =12670a(1) =123739a(2) =1096596a(3) =7485767a(4) =48046512a(5) =261990105a(6) =1374831443a(7) =6492635940a(8) =29922945960a(9) =128376366657a(10) =542148465879
External references
- oeis: A251478