G.f. satisfies: A(x) = B(x*A(x)), where B(x) is the g.f. of A184509.

A184511

G.f. satisfies: A(x) = B(x*A(x)), where B(x) is the g.f. of A184509.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =12a(4) =58a(5) =324a(6) =2016a(7) =13629a(8) =98644a(9) =756852a(10) =6110309a(11) =51620412a(12) =454430088a(13) =4155005770a(14) =39354004740a(15) =385288338532

External references