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 A334873 #13 Jun 09 2020 22:12:21 %S A334873 0,0,1,0,2,1,2,0,6,2,4,1,4,2,4,0,4,6,9,2,9,4,12,1,6,4,9,2,9,4,6,0,15, %T A334873 4,12,6,12,9,18,2,8,9,20,4,15,12,16,1,16,6,8,4,12,9,12,2,16,9,12,4,9, %U A334873 6,8,0,18,15,20,4,20,12,32,6,15,12,21,9,28,18,24,2,20,8,18,9,12,20,24,4,18,15,20,12,20 %N A334873 a(n) = A329697(n) * A334204(n). %H A334873 Antti Karttunen, <a href="/A334873/b334873.txt">Table of n, a(n) for n = 1..65537</a> %H A334873 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %F A334873 a(n) = A329697(n) * A334204(n) = A329697(n) * A329697(A163511(n)). %o A334873 (PARI) A334873(n) = (A329697(n) * A334204(n)); %Y A334873 Cf. A163511, A329697, A334204, A334867. %Y A334873 Cf. A000079 (positions of zeros); It is also conjectured that A007283 gives the positions of ones, and that A070875 gives the indices of twos. %K A334873 nonn %O A334873 1,5 %A A334873 _Antti Karttunen_, Jun 09 2020