Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

A252067

Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

Terms

    a(0) =92a(1) =152a(2) =1497a(3) =21862a(4) =480464a(5) =16789564a(6) =896763044a(7) =73759241675

External references