Number of unlabeled trivalent (or cubic) graphs with 2n nodes.

A005638

Number of unlabeled trivalent (or cubic) graphs with 2n nodes.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =6a(5) =21a(6) =94a(7) =540a(8) =4207a(9) =42110a(10) =516344a(11) =7373924a(12) =118573592a(13) =2103205738a(14) =40634185402a(15) =847871397424

External references