Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3.
A252445
Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3.
Terms
- a(0) =259257a(1) =10157387a(2) =454665875a(3) =17918363933a(4) =727114790171
External references
- oeis: A252445