A015077 - OEIS

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A015077

q-Catalan numbers (binomial version) for q=-9.

1

1, 1, 82, 537355, 285611227174, 12294441765937436842, 42868139471008987306371257332, 12107226510541735123474554479514562160539

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..7.

FORMULA

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

CROSSREFS

Sequence in context: A206648 A120269 A291586 * A015040 A235982 A116296

Adjacent sequences: A015074 A015075 A015076 * A015078 A015079 A015080

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

STATUS

approved