A015079 q-Catalan numbers (binomial version) for q=-11.

1, 1, 122, 1784993, 3162420494366, 677889092180295554010, 17582706239031734855147601736020, 55182061625844132594149408768243237640344385

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: A198603 A237640 A258489 * A015042 A062233 A351406

Adjacent sequences: A015076 A015077 A015078 * A015080 A015081 A015082

Keyword

nonn,easy

Author

Olivier Gérard

Status

approved