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%I #5 May 14 2019 11:00:08
%S 0,1,5,490,31629560
%N Number of (undirected) Hamiltonian paths in the n-Mycielski graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/HamiltonianPath.html">Hamiltonian Path</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MycielskiGraph.html">Mycielski Graph</a>
%F a(n) = A137890(n)/2.
%Y Cf. A137890.
%K nonn,more,hard
%O 1,3
%A _Eric W. Weisstein_, May 14 2019