%I #17 Feb 16 2025 08:33:39
%S 0,6,144,47520,664024227840
%N Number of directed Hamiltonian cycles in the n-folded cube graph.
%C a(5) is also the number of directed Hamiltonian cycles in the 2-Keller graph. - _Eric W. Weisstein_, Mar 21 2018
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/FoldedCubeGraph.html">Folded Cube Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HamiltonianCycle.html">Hamiltonian Cycle</a>
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KellerGraph.html">Keller Graph</a>
%K nonn,hard,more,changed
%O 2,2
%A _Eric W. Weisstein_, Jan 17 2017