Skew Dyck paths without up–down–left
DOI:
https://doi.org/10.26493/2590-9770.1598.e49Keywords:
Dyck paths, generating functions, kernel methodAbstract
Skew Dyck paths without up–down–left are enumerated. In a second step, the number of contiguous subwords ‘up–down–left’ are counted. This explains and extends results that were posted in the Encyclopedia of Integer Sequences.