Number of (n+1) X (4+1) 0..2 arrays with every 2 X 2 subblock summing to a prime.
A251406
Number of (n+1) X (4+1) 0..2 arrays with every 2 X 2 subblock summing to a prime.
Terms
- a(0) =6370a(1) =179400a(2) =5037428a(3) =143030000a(4) =4043668176a(5) =114835717382
External references
- oeis: A251406