Number of degeneracies on the sets of ordinary trees with n vertices according to a topological index.
A121223
Number of degeneracies on the sets of ordinary trees with n vertices according to a topological index.
Terms
- a(0) =2a(1) =2a(2) =2a(3) =11a(4) =25a(5) =98a(6) =214a(7) =747a(8) =1947a(9) =6399a(10) =16846a(11) =55131a(12) =150720a(13) =462160a(14) =1302117
External references
- oeis: A121223