L.g.f.: exp(Sum_{n>=1} a(n)*x^n/n) = 1 + x*exp(Sum_{n>=1} Lucas(n)*a(n)*x^n/n) where Lucas(n) = A000204(n).

A158258

L.g.f.: exp(Sum_{n>=1} a(n)*x^n/n) = 1 + x*exp(Sum_{n>=1} Lucas(n)*a(n)*x^n/n) where Lucas(n) = A000204(n).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =21a(4) =186a(5) =2482a(6) =52431a(7) =1742069a(8) =92198200a(9) =7788221136

External references