E.g.f.: exp( Sum_{n>=1} Pell(n)*x^n/n ), where Pell(n) = A000129(n).

A244432

E.g.f.: exp( Sum_{n>=1} Pell(n)*x^n/n ), where Pell(n) = A000129(n).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =17a(4) =137a(5) =1437a(6) =18547a(7) =284221a(8) =5042289a(9) =101635289a(10) =2294115299a(11) =57323597289

External references