A natural extension of Catalan numbers.
Solomon, Noam ; Solomon, Shay
Journal of Integer Sequences [electronic only], Tome 11 (2008), / Harvested from The Electronic Library of Mathematics
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Publié le : 2008-01-01
EUDML-ID : urn:eudml:doc:54635 
@article{05370481,
     title = {A natural extension of Catalan numbers.},
     journal = {Journal of Integer Sequences [electronic only]},
     volume = {11},
     year = {2008},
     zbl = {1148.05009},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05370481}
}

Solomon, Noam; Solomon, Shay. A natural extension of Catalan numbers.. Journal of Integer Sequences [electronic only], Tome 11 (2008) . http://gdmltest.u-ga.fr/item/05370481/