Number of unlabeled rooted trees with n nodes such that every branch of the root has the same number of nodes.
A298537
Number of unlabeled rooted trees with n nodes such that every branch of the root has the same number of nodes.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =25a(7) =49a(8) =127a(9) =291a(10) =766a(11) =1843a(12) =5003a(13) =12487a(14) =34151a(15) =87983a(16) =242088a(17) =634848a(18) =1763749a(19) =4688677a(20) =13085621a(21) =35241441a(22) =98752586a(23) =268282856a(24) =755353825a(25) =2067175933a(26) =5837592853a(27) =16087674276a(28) =45550942142a(29) =126186554309
External references
- oeis: A298537