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%I #9 Jan 14 2021 21:39:15
%S 1,1,2,7,41,399,7622
%N Total number of optimal fundamentally different radio labelings summed over all simple (connected) graphs on n nodes.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ConnectedGraph.html">Connected Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/RadioLabeling.html">Radio Labeling</a>
%Y Cf. A340538.
%K nonn,more
%O 1,3
%A _Eric W. Weisstein_, Jan 14 2021