Generating function satisfies A(x) = exp(A(x)x + 3A(x^2)x^2/2 + A(x^3)x^3/3 + 3A(x^4)x^4/4 +...).

A073079

Generating function satisfies A(x) = exp(A(x)x + 3A(x^2)x^2/2 + A(x^3)x^3/3 + 3A(x^4)x^4/4 +...).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =6a(4) =16a(5) =38a(6) =103a(7) =268a(8) =738a(9) =2029a(10) =5723a(11) =16242a(12) =46762a(13) =135584a(14) =396702a(15) =1167986a(16) =3460931a(17) =10308313a(18) =30853232a(19) =92734392a(20) =279811894a(21) =847218649a(22) =2573387068a(23) =7839150746a(24) =23943472360a(25) =73310409148a(26) =224970044407a(27) =691817432334

External references