Number of labeled 3-arch graphs on n nodes.

A131312

Number of labeled 3-arch graphs on n nodes.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =1a(4) =10a(5) =380a(6) =34405a(7) =5919536a(8) =1709074584a(9) =764754595200

External references