Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically.
A253981
Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically.
Terms
- a(0) =136868a(1) =4858102a(2) =179261149a(3) =6386040127a(4) =228352636069
External references
- oeis: A253981