Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A253992
Number of (n+2)X(7+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) =43840181a(2) =890259584a(3) =20976836853a(4) =431011794558
External references
- oeis: A253992