%I #4 Jul 29 2017 19:32:35
%S 1,1,1,3,6,270,45,63,1260,31500,3150,155925,103950
%N Reduced denominators of the Kirchhoff sum index for the n-halved cube graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/HalvedCubeGraph.html">Halved Cube Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KirchhoffSumIndex.html">Kirchhoff Sum Index</a>
%Y Cf. A290367 (numerators).
%K nonn,frac,more
%O 1,4
%A _Eric W. Weisstein_, Jul 28 2017