A015041 q-Catalan numbers (binomial version) for q=10.

1, 1, 101, 1011101, 1011212121101, 101122324343423221101, 1011224355769798979675534221101, 1011224467004378104253524007733996644221101

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: A252491 A015078 A031982 * A317957 A266244 A138120

Adjacent sequences: A015038 A015039 A015040 * A015042 A015043 A015044

Keyword

nonn,easy

Author

Olivier Gérard

Status

approved