G.f. A(x) equals the composition of functions x*(1 + a(n)*x^n); let F_1(x) = x, F_{n+1}(x) = F_n( x*(1 + a(n)*x^n) ), then A(x) = limit F_n(x): A(x) = x*(1+a(1)*x) o x*(1+a(2)*x^2) o ... o x*(1+a(n)*x^n) o ...
A119472
G.f. A(x) equals the composition of functions x*(1 + a(n)*x^n); let F_1(x) = x, F_{n+1}(x) = F_n( x*(1 + a(n)*x^n) ), then A(x) = limit F_n(x): A(x) = x*(1+a(1)*x) o x*(1+a(2)*x^2) o ... o x*(1+a(n)*x^n) o ...
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =5a(5) =15a(6) =42a(7) =124a(8) =352a(9) =1124a(10) =3574a(11) =11588a(12) =38033a(13) =127297a(14) =426302a(15) =1459632a(16) =4986161a(17) =17345028a(18) =60373874a(19) =212488958a(20) =747271311a(21) =2661073611a(22) =9451241495a(23) =33925353554a(24) =121618969926a(25) =439680022154
External references
- oeis: A119472