Number of noncrossing trees with n edges and all nodes having degree at most 3.
A378078
Number of noncrossing trees with n edges and all nodes having degree at most 3.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =50a(5) =219a(6) =987a(7) =4552a(8) =21366a(9) =101730a(10) =490094a(11) =2384520a(12) =11699844a(13) =57825103a(14) =287611755a(15) =1438536144a(16) =7230782414a(17) =36506547918a(18) =185047345050a(19) =941359362760
External references
- oeis: A378078