Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 4 5 or 6.
A251832
Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 4 5 or 6.
Terms
- a(0) =18124a(1) =262404a(2) =4182084a(3) =60982362a(4) =909331750a(5) =13666111138a(6) =204086278908
External references
- oeis: A251832