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Number of 5-ary Lyndon words of length n over Z_5 with trace 0 and subtrace 0.
7

%I #14 May 03 2019 07:19:54

%S 1,0,0,6,24,104,432,1950,8736,39298,177784,813748,3755048,17438400,

%T 81380192,381468750,1795133272,8477100632,40154790296,190735234220,

%U 908261625600,4334883167500,20732048658288,99341074218100,476837158203000,2292486335637500

%N Number of 5-ary Lyndon words of length n over Z_5 with trace 0 and subtrace 0.

%C Same as number of Lyndon words of length n over GF(5) with trace 0 and subtrace 0.

%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/TSlyndonZ5">5-ary Lyndon words with given trace and subtrace</a>

%H F. Ruskey, <a href="http://combos.org/TSlyndonF5">5-ary Lyndon words with given trace and subtrace over GF(5)</a>

%Y Cf. A074415, A074416, A074417, A074418, A074419, A074420, A074421.

%K easy,nonn

%O 1,4

%A _Frank Ruskey_ and Nate Kube, Aug 22 2002

%E Terms a(16) onward from _Max Alekseyev_, Apr 09 2013