A015040 q-Catalan numbers (binomial version) for q=9.

1, 1, 82, 538813, 286395753646, 12328630051958712010, 42987364825231475446819490020, 12140904342526064511968354988982391829685

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: A120269 A291586 A015077 * A235982 A116296 A324674

Adjacent sequences: A015037 A015038 A015039 * A015041 A015042 A015043

Keyword

nonn,easy

Author

Olivier Gérard

Status

approved