\[h_{n}=\frac{\left(-c\right)^{n}a^{n+1}}{1-abq^{2n+1}}\frac{\left(q;q\right)_{n%
}q^{\genfrac{(}{)}{0.0pt}{}{n+2}{2}}}{\left(aq,cq;q\right)_{n}}\*\frac{\left(q%
,c^{-1}aq,a^{-1}c,abq^{n+1};q\right)_{\infty}}{\left(aq,cq,bq^{n+1},c^{-1}abq^%
{n+1};q\right)_{\infty}},\]