Number of connected trivalent graphs with 2n nodes and girth exactly 6.

A006926

Number of connected trivalent graphs with 2n nodes and girth exactly 6.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =1a(9) =5a(10) =32a(11) =385a(12) =7573a(13) =181224a(14) =4624480a(15) =122089998a(16) =3328899586a(17) =93988909755

External references