Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A253990
Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =222400a(1) =1738927a(2) =20022358a(3) =266574705a(4) =3087530706a(5) =36681094867a(6) =455476058266
External references
- oeis: A253990