E.g.f.: exp( Sum_{n>=1} A000108(n)*x^n/n ), where A000108(n) = binomial(2*n,n)/(n+1) forms the Catalan numbers.
A213507
E.g.f.: exp( Sum_{n>=1} A000108(n)*x^n/n ), where A000108(n) = binomial(2*n,n)/(n+1) forms the Catalan numbers.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =17a(4) =149a(5) =1809a(6) =28399a(7) =550297a(8) =12732873a(9) =343231361a(10) =10576764251a(11) =367054970721
External references
- oeis: A213507