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 A284558 #5 Apr 15 2017 09:18:44 %S A284558 1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,2,1,1,1,1,1,2,1,2,1,1,1,1,1,1, %T A284558 1,1,2,1,2,1,1,1,1,1,2,1,1,1,2,1,2,4,2,1,2,1,3,1,1,1,2,1,1,1,1,1,1,2, %U A284558 1,1,1,3,1,2,1,2,4,2,1,2,1,1,1,2,1,1,1,1,1,2,1,2,1,1,1,1,1,2,1,2,4,2,4,2,1,2,1,2,4,2,1,2,1,3,1,2,1,1,1,3,1 %N A284558 Product / LCM of run lengths in binary representation of n: a(n) = A167489(n) / A284559(n). %H A284558 Antti Karttunen, <a href="/A284558/b284558.txt">Table of n, a(n) for n = 0..10922</a> %H A284558 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %F A284558 a(n) = A167489(n) / A284559(n). %o A284558 (Scheme) (define (A284558 n) (/ (A167489 n) (A284559 n))) %Y A284558 Cf. A167489, A284559, A284562. %K A284558 nonn,base %O A284558 0,13 %A A284558 _Antti Karttunen_, Apr 14 2017