OFFSET
2,2
COMMENTS
The 5-folded cube graph and 2-Keller graph are isomorphic (to the Clebsch graph), so a(5) is also the number of undirected Hamiltonian paths in the 2-Keller graph.
LINKS
Eric Weisstein's World of Mathematics, Folded Cube Graph
Eric Weisstein's World of Mathematics, Hamiltonian Path
FORMULA
a(n) = A137887(n)/2.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Eric W. Weisstein, May 07 2019
STATUS
approved
