T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock summing to a prime.
A251616
T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock summing to a prime.
Terms
- a(0) =826a(1) =14008a(2) =14008a(3) =237566a(4) =583034a(5) =237566a(6) =4031056a(7) =24317054a(8) =24317054a(9) =4031056a(10) =68377410a(11) =1016045742a(12) =2500893370a(13) =1016045742a(14) =68377410a(15) =1160228856a(16) =42444702494a(17) =258178221074a(18) =258178221074a(19) =42444702494a(20) =1160228856
External references
- oeis: A251616