Number of simple labeled graphs on n nodes of degree 1 or 2 without cycles.
A185369
Number of simple labeled graphs on n nodes of degree 1 or 2 without cycles.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =3a(4) =15a(5) =90a(6) =645a(7) =5355a(8) =50505a(9) =532980a(10) =6219045a(11) =79469775a(12) =1103335695a(13) =16533226710a(14) =265888247625
External references
- oeis: A185369