%I #62 Jul 08 2020 20:43:25
%S 0,2592,33120
%N Number of graceful labelings of the n-crown graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/CrownGraph.html">Crown Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GracefulLabeling.html">Graceful Labeling</a>
%K nonn,bref,more
%O 3,2
%A _Eric W. Weisstein_, Jul 06 2020