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Number of graceful labelings of the complement of the path graph P_n.
0

%I #5 Feb 16 2025 08:34:00

%S 1,0,0,4,52,136,180,72,4

%N Number of graceful labelings of the complement of the path graph P_n.

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GracefulLabeling.html">Graceful Labeling</a>

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PathComplementGraph.html">Path Complement Graph</a>

%K nonn,more,changed

%O 1,4

%A _Eric W. Weisstein_, Jul 21 2020