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A015107 q-Catalan numbers (recurrence version) for q=-10. 0
1, 1, -9, -919, 917271, 9174563561, -917438025443049, -917439860513400673559, 9174396770273536422744011031, 917439695376166450708460281823359721, -917439693541287252616828116888122637934368489 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..11.

FORMULA

a(n) = sum_{i=1}^{n-1} q^{(i-1)} a(i) a(n-i).

CROSSREFS

Sequence in context: A027878 A045793 A069054 * A024124 A036255 A070233

Adjacent sequences:  A015104 A015105 A015106 * A015108 A015109 A015110

KEYWORD

sign

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified May 24 15:38 EDT 2013. Contains 225624 sequences.