Number of self-complementary directed 3-multigraphs on n nodes.
A052151
Number of self-complementary directed 3-multigraphs on n nodes.
Terms
- a(0) =1a(1) =2a(2) =32a(3) =528a(4) =131328a(5) =22377984a(6) =91628068864
External references
- oeis: A052151