Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.
A252072
Number of (n+2)X(5+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.
Terms
- a(0) =767a(1) =3029a(2) =17455a(3) =92225a(4) =480464a(5) =2547765a(6) =13460641a(7) =71027923a(8) =375675345a(9) =1985308056a(10) =10482759501a(11) =55378851635a(12) =292644335776
External references
- oeis: A252072