A015039 q-Catalan numbers (binomial version) for q=8.
1, 1, 65, 266817, 69963653697, 1173835620696269377, 1260401809332973746871411265, 86614199277767115453624156235708310081, 380933302489206359659857650468008737411766944866881
Offset: 0
Formula
{1 / (n+1)_q} {2 n choose n}_q.