Number of quartic bicolored graphs on n unlabeled nodes admitting an automorphism exchanging the colors.
A000843
Number of quartic bicolored graphs on n unlabeled nodes admitting an automorphism exchanging the colors.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =4a(6) =12a(7) =66a(8) =433a(9) =3442a(10) =30404a(11) =294951a(12) =3093770a(13) =34846185a(14) =419020738a(15) =5355289843a(16) =72466668921
External references
- oeis: A000843