Number of isomorphism classes of connected plane 4-regular multigraphs.

A277739

Number of isomorphism classes of connected plane 4-regular multigraphs.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =30a(4) =124a(5) =733a(6) =4586a(7) =33373a(8) =259434a(9) =2152298a(10) =18615182a(11) =166544071a(12) =1528659536a(13) =14328433429a(14) =136649176084

External references