Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 or 4.
A252342
Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 2 3 or 4.
Terms
- a(0) =5706a(1) =46154a(2) =413478a(3) =3338572a(4) =26921266a(5) =220263010a(6) =1793526072a(7) =14603098032a(8) =119141197236a(9) =970914856560
External references
- oeis: A252342