E.g.f.: exp( Sum_{n>=1} q_binomial(2*n,n,x) * x^n/n ), where q_binomial(n,k,q) = Product_{j=1..n-k} (1-q^(j+k))/(1-q^j).

A221095

E.g.f.: exp( Sum_{n>=1} q_binomial(2*n,n,x) * x^n/n ), where q_binomial(n,k,q) = Product_{j=1..n-k} (1-q^(j+k))/(1-q^j).