Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254391
Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =3372a(1) =35529a(2) =406548a(3) =4711324a(4) =54122833a(5) =623732385a(6) =7193711039a(7) =82923118414a(8) =955995402059
External references
- oeis: A254391