%I A074422
%S A074422 1,0,0,4,25,165,1157,6552,33045,167928
%N A074422 Number of 6-ary Lyndon words of length n with trace 0 and subtrace 0 
               over Z_6.
%H A074422 F. Ruskey <a href="http://www.theory.csc.uvic.ca/~cos/inf/trs/lyn/Zq/
               lyn_tr_subtr_Z6.html">6-ary Lyndon words with given trace and subtrace</
               a>
%Y A074422 Cf. A074423, A074424, A074425, A074426, A074427, A074428, A074429, A074430, 
               A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074438, 
               A074439, A074440, A074441, A074442, A074443, A074444, A074445.
%Y A074422 Sequence in context: A010909 A079750 A073517 this_sequence A128419 A006880 
               A081068
%Y A074422 Adjacent sequences: A074419 A074420 A074421 this_sequence A074423 A074424 
               A074425
%K A074422 easy,nonn
%O A074422 1,4
%A A074422 Frank Ruskey, Nate Kube (fruskey(AT)cs.uvic.ca), Aug 23 2002