E.g.f.: exp( Sum_{n>=1} A000108(n-1)*x^n/n ), where A000108(n) = binomial(2*n,n)/(n+1) forms the Catalan numbers.

A243953

E.g.f.: exp( Sum_{n>=1} A000108(n-1)*x^n/n ), where A000108(n) = binomial(2*n,n)/(n+1) forms the Catalan numbers.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =8a(4) =56a(5) =592a(6) =8512a(7) =155584a(8) =3456896a(9) =90501632a(10) =2728876544a(11) =93143809024

External references