G.f.: A(x) = 1+x*(1+x*(1+x*(...(1+x*(...)^n)...)^3)^2)^1.

A095793

G.f.: A(x) = 1+x*(1+x*(1+x*(...(1+x*(...)^n)...)^3)^2)^1.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =7a(5) =36a(6) =245a(7) =2072a(8) =20913a(9) =245012a(10) =3265581a(11) =48766020a(12) =806254126a(13) =14616629622a(14) =288272307999

External references