Number of simple labeled graphs on n nodes with exactly 3 connected components that are trees or cycles.
A215853
Number of simple labeled graphs on n nodes with exactly 3 connected components that are trees or cycles.
Terms
- a(0) =1a(1) =6a(2) =55a(3) =540a(4) =6412a(5) =90734a(6) =1515097a(7) =29368155a(8) =649910349a(9) =16178495157a(10) =447436384356
External references
- oeis: A215853