G.f. satisfies: A(x) = F(x*A(x)), where F(x) is the g.f. of A094600.

A094601

G.f. satisfies: A(x) = F(x*A(x)), where F(x) is the g.f. of A094600.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =12a(4) =50a(5) =234a(6) =1125a(7) =5620a(8) =28753a(9) =150106a(10) =796240a(11) =4279232a(12) =23251672a(13) =127518750a(14) =704957715a(15) =3924307492a(16) =21978740682a(17) =123758612644a(18) =700204091361

External references