Number of unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 7.
A244461
Number of unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 7.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =2a(9) =2a(10) =2a(11) =2a(12) =2a(13) =2a(14) =4a(15) =7a(16) =12a(17) =16a(18) =21a(19) =25a(20) =30a(21) =38a(22) =52a(23) =74a(24) =108a(25) =151a(26) =206a(27) =271a(28) =356a(29) =468
External references
- oeis: A244461