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A015034 q-Catalan numbers (binomial version) for q=4. 0
1, 1, 17, 4433, 18245201, 1197172898385, 1255709588423576145, 21068918017101222558779985, 5655752483351603939678821837720145, 24291387778773301588924456932322615789898321 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

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

CROSSREFS

Sequence in context: A032909 A194015 A015058 * A161583 A013722 A052286

Adjacent sequences:  A015031 A015032 A015033 * A015035 A015036 A015037

KEYWORD

nonn,easy

AUTHOR

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

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.