Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A253999
Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =3644672a(1) =57285940a(2) =1239374238a(3) =22204822621a(4) =455476058266
External references
- oeis: A253999