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In this paper, we expand on the work of Guo and Zeng from 2007 on ageneralization of the Ramanujan polynomials and planar trees. We manage to findcombinatorial interpretations of this family of polynomials in terms of Gregtrees, Cayley trees, and planar trees by constructing bijections that preserverelevant tree statistics.

Arboretum for a generalization of Ramanujan polynomials