Number of connected regular bipartite graphs of degree 4 with 2n nodes.

A006824

Number of connected regular bipartite graphs of degree 4 with 2n nodes.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =14a(4) =129a(5) =1980a(6) =62611a(7) =2806490a(8) =158937213a(9) =10773251972a(10) =855658082615

External references