Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 or 6.
A252324
Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 or 6.
Terms
- a(0) =723110a(1) =7391236a(2) =96651850a(3) =1374911658a(4) =21966758822a(5) =361804339326
External references
- oeis: A252324