A015038 q-Catalan numbers (binomial version) for q=7.

1, 1, 50, 120443, 14176726502, 81731562414097002, 23087367704084630526165300, 319559330566264937870155968502833579, 216732554100846341408822827225378918525605881606

Offset

0,3

Links

Table of n, a(n) for n=0..8.

Formula

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

Crossrefs

Sequence in context: A229670 A152514 A015062 * A152515 A111402 A174732

Adjacent sequences: A015035 A015036 A015037 * A015039 A015040 A015041

Keyword

nonn,easy

Author

Olivier Gérard

Status

approved