G.f. A(x) satisfies: A(x) = x*exp(Sum_{n>=1} Sum_{k>=1} n*a(n)*x^(n*k)/k).
A307708
G.f. A(x) satisfies: A(x) = x*exp(Sum_{n>=1} Sum_{k>=1} n*a(n)*x^(n*k)/k).
Terms
- a(0) =0a(1) =1a(2) =1a(3) =3a(4) =12a(5) =63a(6) =396a(7) =2917a(8) =24425a(9) =228827a(10) =2367622a(11) =26799874a(12) =329366481a(13) =4367857498a(14) =62177776756a(15) =945859958142
External references
- oeis: A307708