Number of (n+2)X(1+2) 0..4 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.
A251956
Number of (n+2)X(1+2) 0..4 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.
Terms
- a(0) =5484a(1) =11375a(2) =27550a(3) =101307a(4) =417045a(5) =1957438a(6) =10045910a(7) =53241089a(8) =284500818a(9) =1525692838a(10) =8194567198a(11) =44035052838a(12) =236663562577
External references
- oeis: A251956