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A015057 q-Catalan numbers (binomial version) for q=-3. 0
1, 1, 10, 793, 583102, 3815415802, 225503698948660, 119805449249886397129, 573084012222813752884459126, 24668552204097304242240261360949726, 9557210465694593089306513607806406698372300 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

{1 / (n+1)_q} {2 n choose n}_q.

CROSSREFS

Sequence in context: A108247 A108243 A159709 * A006440 A054944 A015093

Adjacent sequences:  A015054 A015055 A015056 * A015058 A015059 A015060

KEYWORD

nonn,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified February 17 19:07 EST 2012. Contains 206085 sequences.