Number of directed multigraphs without loops containing n edges and an infinite number of vertices modulo isomorphism and reversal of all edge directions.
A363163
Number of directed multigraphs without loops containing n edges and an infinite number of vertices modulo isomorphism and reversal of all edge directions.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =17a(4) =83a(5) =394a(6) =2278a(7) =13949a(8) =93898a(9) =670003a(10) =5059914a(11) =40033149a(12) =330555726a(13) =2836763749a(14) =25233047351a(15) =232080785282
External references
- oeis: A363163