Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4.
A252064
Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4.
Terms
- a(0) =10836a(1) =43618a(2) =299027a(3) =2292363a(4) =18508976a(5) =151165482a(6) =1229012088a(7) =9989905340a(8) =81383095801a(9) =663247905243
External references
- oeis: A252064