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%I #13 Jul 21 2021 00:42:42
%S 1,2,3,4,5,6,7,9,11,13,16,18,20,22,24,29,31,35,37,40,42,44,53,55,57,
%T 64,66,68,77,79,81,97,99,101,110,112,121,123,125,134,136,145,147,149,
%U 178,180,189,191,193,215,217,226,228,230,246,248,250,259,261,270
%N Numbers k such that the ternary tribonacci sequence (A080843) has a Lyndon factor of length k.
%C A "factor" is a contiguous subblock. A factor is "Lyndon" if it is lexicographically least among all its cyclic shifts.
%H Hamoon Mousavi and Jeffrey Shallit, <a href="https://arxiv.org/abs/1407.5841">Mechanical Proofs of Properties of the Tribonacci Word</a>, arXiv:1407.5841 [cs.FL], 2014.
%H H. Mousavi and J. Shallit, <a href="https://doi.org/10.1007/978-3-319-23660-5_15">Mechanical Proofs of Properties of the Tribonacci Word</a>, In: Manea F., Nowotka D. (eds) Combinatorics on Words. WORDS 2015. Lecture Notes in Computer Science, vol 9304. Springer, 2015, pp. 170-190.
%Y Cf. A080843.
%K nonn
%O 1,2
%A _Jeffrey Shallit_, Jun 11 2019
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