The Number of Designated Parts in Compositions with Restricted Parts
Mengmeng Liu and Andrew Yezhou Wang
School of Mathematical Sciences
University of Electronic Science and Technology of China
P. R. China
In this paper, we study the number of designated parts in three types
of compositions with restricted parts. We find new combinatorial
interpretations of some known sequences, and establish two identities
concerning these known sequences.
Full version: pdf,
(Concerned with sequences
Received July 7 2019; revised version received December 30 2019.
Published in Journal of Integer Sequences,
December 31 2019.
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