Number of connected induced (non-null) subgraphs of the gear graph with 2n+1 nodes.

A286188

Number of connected induced (non-null) subgraphs of the gear graph with 2n+1 nodes.

Terms

    a(0) =6a(1) =26a(2) =76a(3) =218a(4) =664a(5) =2174a(6) =7452a(7) =26130a(8) =92512a(9) =328774a(10) =1170052a(11) =4166106a(12) =14836488a(13) =52839374a(14) =188188396a(15) =670240802a(16) =2387095600a(17) =8501764310a(18) =30279479508a(19) =107841961962a(20) =384084839128

External references