Number of degeneracies on the sets of N ordinary trees with p vertices.
A121221
Number of degeneracies on the sets of N ordinary trees with p vertices.
Terms
- a(0) =2a(1) =2a(2) =4a(3) =15a(4) =35a(5) =137a(6) =306a(7) =1056a(8) =2510a(9) =8094a(10) =21568a(11) =66310a(12) =183338a(13) =545993a(14) =1538831
External references
- oeis: A121221