OFFSET
3,1
COMMENTS
The n-cube-connected cycle graph is Hamilton-connected for odd n, leading to a closed formula for those terms:
a(7) = 358859200
a(9) = 48901130496
LINKS
Eric Weisstein's World of Mathematics, Cube-Connected Cycle Graph
Eric Weisstein's World of Mathematics, Detour Index
FORMULA
a(n) = 2^(n - 1)*n*(2^n*n - 1)^2 for odd n >= 3.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Dec 20 2017
STATUS
approved