Number of directed multigraphs with loops containing n edges and an infinite number of vertices modulo isomorphism and reversal of all edge directions.
A364088
Number of directed multigraphs with loops containing n edges and an infinite number of vertices modulo isomorphism and reversal of all edge directions.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =37a(4) =186a(5) =985a(6) =5953a(7) =38689a(8) =271492a(9) =2016845a(10) =15767277a(11) =128792803a(12) =1094819196a(13) =9652396448a(14) =88040449618a(15) =829019941267
External references
- oeis: A364088