Number of (n+2)X(3+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.
A251814
Number of (n+2)X(3+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.
Terms
- a(0) =738a(1) =771a(2) =1754a(3) =5401a(4) =18227a(5) =62457a(6) =213857a(7) =735191a(8) =2535595a(9) =8732059a(10) =30044333a(11) =103433297a(12) =356211437a(13) =1226555559a(14) =4222869527a(15) =14539251609a(16) =50061142057a(17) =172368825829a(18) =593481175903
External references
- oeis: A251814