Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.
A252074
Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.
Terms
- a(0) =3279a(1) =23091a(2) =206747a(3) =1669294a(4) =13460641a(5) =110131513a(6) =896763044a(7) =7301549024a(8) =59570598626a(9) =485457428288
External references
- oeis: A252074