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A015058 q-Catalan numbers (binomial version) for q=-4. 0
1, 1, 17, 4305, 17685969, 1158222948817, 1214707441621563857, 20378476519005090654009809, 5470368244500158631765129973873105, 23494985488623606981701685225398976313178577 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..9.

FORMULA

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

CROSSREFS

Sequence in context: A239165 A329168 A194015 * A015034 A161583 A013722

Adjacent sequences:  A015055 A015056 A015057 * A015059 A015060 A015061

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified January 16 19:48 EST 2022. Contains 350376 sequences. (Running on oeis4.)