login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A015062 q-Catalan numbers (binomial version) for q=-7. 0
1, 1, 50, 119757, 14094337902, 81246911474597002, 22950408766815313800875300, 317662868501471575977731478166067621, 215446318838899436153587239312460946873230930006 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

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

CROSSREFS

Sequence in context: A173170 A146518 A152514 * A015038 A152515 A111402

Adjacent sequences:  A015059 A015060 A015061 * A015063 A015064 A015065

KEYWORD

nonn,easy

AUTHOR

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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 06:27 EST 2012. Contains 205998 sequences.