Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically.
A253979
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically.
Terms
- a(0) =3372a(1) =36434a(2) =417518a(3) =4858102a(4) =55806952a(5) =642845877a(6) =7415403315a(7) =85480006244a(8) =985444143538
External references
- oeis: A253979