%I #11 May 03 2019 07:19:05
%S 0,0,1,2,25,214,1296,6552,33048,169987,894829,4881168,27433728,
%T 155483424,877515379,4933761408,27757515151,156728297088,889181991936,
%U 5068079700940,28988793435209,166191833516125,954256949236825,5486915505475584,31596861676172076
%N Number of 6-ary Lyndon words of length n with trace 2 and subtrace 4 over Z_6.
%C Same as the number of 6-ary Lyndon words of length n with trace 4 and subtrace 4 over Z_6.
%H Max Alekseyev, <a href="http://home.gwu.edu/~maxal/gpscripts/">PARI/GP scripts for miscellaneous math problems</a>
%H F. Ruskey <a href="http://combos.org/TSlyndonZ6">6-ary Lyndon words with given trace and subtrace</a>
%Y Cf. A074422, A074423, A074424, A074425, A074426, A074427, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074439, A074440, A074441, A074442, A074443, A074444, A074445.
%K easy,nonn
%O 1,4
%A _Frank Ruskey_ and Nate Kube, Aug 23 2002
%E Terms a(11) onwards from _Max Alekseyev_, Feb 20 2010