Number of 3-edge-colored connected trivalent graphs with 2n nodes.

A002831

Number of 3-edge-colored connected trivalent graphs with 2n nodes.

Terms

    a(0) =1a(1) =4a(2) =11a(3) =60a(4) =318a(5) =2806a(6) =29359a(7) =396196a(8) =6231794a(9) =112137138a(10) =2249479114a(11) =49691965745

External references