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 A335166 #10 Jan 02 2022 16:34:18
%S A335166 1,7,4,10,6,3,14,12,5,13,2,9,8,15,11,1,7,4,10,6,3,14,12,5,13,2,9,8,15,
%T A335166 11,1,7,4,10,6,3,14,12,5,13,2,9,8,15,11,1,7,4,10,6,3,14,12,5,13,2,9,8,
%U A335166 15,11,1,7,4,10,6,3,14,12,5,13,2,9,8,15,11,1,7
%N A335166 Nim n-th power of 7.
%H A335166 J. H. Conway, <a href="https://doi.org/10.1016/0012-365X(90)90008-6">Integral lexicographic codes</a>, Discrete Mathematics 83.2-3 (1990): 219-235. See Table 3.
%F A335166 a(n+15) = a(n). - _Rémy Sigrist_, Jun 12 2020
%t A335166 PadRight[{},120,{1,7,4,10,6,3,14,12,5,13,2,9,8,15,11}] (* _Harvey P. Dale_, Jan 02 2022 *)
%Y A335166 A row of the array in A335162.
%K A335166 nonn
%O A335166 0,2
%A A335166 _N. J. A. Sloane_, Jun 12 2020
%E A335166 More terms from _Rémy Sigrist_, Jun 12 2020