This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A054666 #10 Jul 02 2025 16:01:59 %S A054666 1,3,12,54,259,1296,6665,34992,186624,1007769,5496925,30233088, %T A054666 167444795,932906715,5224277604,29386561536,165947641615,940369969152, %U A054666 5345260877285,30467987000514,174102782860140,997134120017175 %N A054666 Number of 6-ary Lyndon words with trace 1 mod 6. %C A054666 Also number of 6-ary Lyndon words with trace 5 mod 6. %H A054666 F. Ruskey, <a href="http://combos.org/TSlyndon">Number of q-ary Lyndon words with given trace mod q</a> %Y A054666 Cf. A000048, A051841, A046211, A046209, A054660, etc. %K A054666 nonn,easy %O A054666 1,2 %A A054666 _N. J. A. Sloane_, Apr 18 2000 %E A054666 More terms from _James Sellers_, Apr 19 2000