Number of isomorphism classes of n-fold coverings of a connected graph with Betti number 6.
A160448
Number of isomorphism classes of n-fold coverings of a connected graph with Betti number 6.
Terms
- a(0) =1a(1) =1a(2) =64a(3) =8051a(4) =7997683a(5) =24883501301
External references
- oeis: A160448