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 A043566 #9 Apr 23 2021 21:54:07
%S A043566 1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,
%T A043566 2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,
%U A043566 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2
%N A043566 Number of runs in base-14 representation of n.
%C A043566 Every positive integers occurs infinitely many times. See A297770 for a guide to related sequences.
%t A043566 b = 14; s[n_] := Length[Split[IntegerDigits[n, b]]];
%t A043566 Table[s[n], {n, 1, 200}]
%Y A043566 Cf. A297782 (number of distinct runs), A297770.
%K A043566 nonn,base
%O A043566 0,15
%A A043566 _Clark Kimberling_