Number of phylogenetic trees with n labels and no singleton leaves.
A320289
Number of phylogenetic trees with n labels and no singleton leaves.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =4a(4) =11a(5) =86a(6) =477a(7) =4810a(8) =40679a(9) =496522a(10) =5662933a(11) =81759910a(12) =1169640551a(13) =19622623190a(14) =336215135973
External references
- oeis: A320289