A211602 Number of binary increasing trees with n nodes and "min-path" of length 3.
0, 1, 3, 7, 20, 70, 287, 1356, 7248
Offset: 2
Links
- Filippo Disanto, André permutations of the second kind associated to strictly binary increasing trees and left to right minima in their sub-permutations, arXiv preprint arXiv:1202.1139 [math.CO], 2012-2014.
Crossrefs
A diagonal of A186366.