Number of simple 4-regular bipartite graphs with 2n nodes.

A333730

Number of simple 4-regular bipartite graphs with 2n nodes.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =4a(6) =14a(7) =130a(8) =1981a(9) =62616a(10) =2806508a(11) =158937367a(12) =10773254138a(13) =855658147832

External references