The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #6 Dec 25 2017 11:27:32
%S 18,126,1575
%N Detour index of the n-Apollonian network.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ApollonianNetworkh.html">Apollonian Network</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/DetourIndex.html">Detour Index</a>
%K nonn,more,bref
%O 1,1
%A _Eric W. Weisstein_, Dec 24 2017