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 5.
A252604
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 5.
Terms
- a(0) =39372a(1) =136336a(2) =769153a(3) =5243537a(4) =39981376a(5) =316795305a(6) =2541062469a(7) =20524278619a(8) =166610320583
External references
- oeis: A252604