The number of forests on n nodes of rooted labeled binary trees (each node has degree <=2).

A200793

The number of forests on n nodes of rooted labeled binary trees (each node has degree <=2).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =16a(4) =121a(5) =1191a(6) =14461a(7) =209098a(8) =3510921a(9) =67175461a(10) =1443249271a(11) =34412298636a(12) =901898694313

External references