Number of labeled loop-graphs with n vertices and at most as many edges as covered vertices.
A369196
Number of labeled loop-graphs with n vertices and at most as many edges as covered vertices.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =39a(4) =320a(5) =3584a(6) =51405a(7) =900947a(8) =18661186a(9) =445827942a(10) =12062839691a(11) =364451604095
External references
- oeis: A369196