Number of isomorphism classes of 6-fold coverings of a connected graph with Betti number n.

A176709

Number of isomorphism classes of 6-fold coverings of a connected graph with Betti number n.

Terms

    a(0) =1a(1) =11a(2) =901a(3) =524137a(4) =373486525a(5) =268749463729

External references