Number of connected trivalent bipartite graphs with 2n nodes.

A006823

Number of connected trivalent bipartite graphs with 2n nodes.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =13a(5) =38a(6) =149a(7) =703a(8) =4132a(9) =29579a(10) =245627a(11) =2291589a(12) =23466857a(13) =259974248a(14) =3087698618a(15) =39075020582a(16) =524492748500

External references