Number of edge-labeled series-reduced trees with n nodes.
A007831
Number of edge-labeled series-reduced trees with n nodes.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =16a(5) =61a(6) =806a(7) =6329a(8) =89272a(9) =1082281a(10) =17596162a(11) =284074165a(12) =5407229972a(13) =107539072733
External references
- oeis: A007831