Number of (n+2) X (3+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically.
A253980
Number of (n+2) X (3+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically.
Terms
- a(0) =21304a(1) =417518a(2) =8727838a(3) =179261149a(4) =3672381306a(5) =75620185999
External references
- oeis: A253980