G.f. A(x) satisfies: A(x) = x*exp(Sum_{n>=1} Sum_{k>=1} (-1)^(k+1)*n*a(n)*x^(n*k)/k).
A307709
G.f. A(x) satisfies: A(x) = x*exp(Sum_{n>=1} Sum_{k>=1} (-1)^(k+1)*n*a(n)*x^(n*k)/k).
Terms
- a(0) =0a(1) =1a(2) =1a(3) =2a(4) =8a(5) =39a(6) =240a(7) =1726a(8) =14189a(9) =130790a(10) =1334873a(11) =14935261a(12) =181757070a(13) =2390363103a(14) =33787482806a(15) =510879775905
External references
- oeis: A307709