Number of pairs of vertices that share no common neighbor summed over all simple labeled graphs on n nodes.
A279045
Number of pairs of vertices that share no common neighbor summed over all simple labeled graphs on n nodes.
Terms
- a(0) =0a(1) =2a(2) =18a(3) =216a(4) =4320a(5) =155520a(6) =10450944a(7) =1337720832a(8) =330225942528
External references
- oeis: A279045