%I #15 Feb 16 2022 11:14:30
%S 1,2,8,30,124,516,2232,9750,43400,195248,887784,4068740,18780048,
%T 87191964
%N Duplicate of A054663.
%C Also number of 5-ary Lyndon words of trace 0 over GF(5).
%H F. Ruskey, <a href="http://combos.org/TlyndonZk">Number of q-ary Lyndon words with given trace mod q</a>
%H F. Ruskey, <a href="http://combos.org/TlyndonFk">Number of Lyndon words over GF(q) with given trace</a>
%Y Cf. A054662.
%K dead
%O 1,2
%A _Frank Ruskey_ and Nate Kube, Aug 21 2002