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 A083924 #11 Jan 29 2024 07:01:38 %S A083924 0,1,1,0,1,1,0,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1, %T A083924 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1, %U A083924 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 %N A083924 Characteristic function for A072795. %C A083924 The sequence obtained by counting the runs of 0- and 1-bits 1,2,1,2,3,5,9,14,28,... is essentially the sequence A000108 interleaved with the sequence A000245, which appears to be A026008. %H A083924 <a href="/index/Ch#char_fns">Index entries for characteristic functions</a> %F A083924 a(0) = 0, a(n>0) = 1 if A072771(n)=0, otherwise 0. %Y A083924 a(n) = A083923(A069770(n)). Used to compute A083926. %K A083924 nonn %O A083924 0,1 %A A083924 _Antti Karttunen_, May 13 2003