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%I #13 Sep 08 2017 14:56:03
%S 1,64,888,9472,76160,556032,3605504,22224896,128471040,719708160,
%T 3874455552,20416954368,104732426240,528985096192,2620635217920,
%U 12831147687936,61916622880768,296036213981184,1399459946692608,6566769862901760
%N Wiener index of the n-cube-connected cycle graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Cube-ConnectedCycleGraph.html">Cube-Connected Cycle Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/WienerIndex.html">Wiener Index</a>
%F a(n) = n * 2^(n-1) * (Sum_{k=1..floor(5n/2)-1} k*A286756(n,k)). - _Andrew Howroyd_, Sep 08 2017
%Y Cf. A192191, A286756.
%K nonn
%O 1,2
%A _Eric W. Weisstein_, Sep 07 2017
%E a(1)-a(2) and a(13)-a(20) from _Andrew Howroyd_, Sep 08 2017