a(n) = [x^n] E(x)^n where E(x) = exp( Sum_{k >= 1} A000172(k)*x^k/k ).

A362731

a(n) = [x^n] E(x)^n where E(x) = exp( Sum_{k >= 1} A000172(k)*x^k/k ).

Terms

    a(0) =1a(1) =2a(2) =18a(3) =182a(4) =1954a(5) =21702a(6) =246366a(7) =2839846a(8) =33105186a(9) =389264798a(10) =4608481918a(11) =54862022910a(12) =656099844526

External references