Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254517
Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =833037a(1) =8282251a(2) =74724261a(3) =648678493a(4) =6835294784a(5) =70328373238a(6) =690528516461
External references
- oeis: A254517