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 A324293 #6 Feb 23 2019 07:22:57
%S A324293 1,2,1,3,2,2,1,4,5,4,2,3,3,2,2,5,4,10,3,8,1,4,2,4,5,8,3,3,4,4,1,6,2,8,
%T A324293 2,19,7,4,3,12,8,2,5,8,10,4,2,5,10,16,4,9,8,4,4,4,3,12,4,8,5,2,5,7,8,
%U A324293 4,5,6,2,4,4,20,11,10,5,9,2,8,3,16,13,6,8,3,8,6,4,12,12,18,3,8,1,4,4,6,9,34,10,27,12,8,5,18,2
%N A324293 a(n) = A002487(sigma(n)).
%H A324293 Antti Karttunen, <a href="/A324293/b324293.txt">Table of n, a(n) for n = 1..16384</a>
%H A324293 Antti Karttunen, <a href="/A324293/a324293.txt">Data supplement: n, a(n) computed for n = 1..65537</a>
%H A324293 <a href="/index/Si#SIGMAN">Index entries for sequences related to sigma(n)</a>
%H A324293 <a href="/index/St#Stern">Index entries for sequences related to Stern's sequences</a>
%F A324293 a(n) = A002487(A000203(n)).
%o A324293 (PARI)
%o A324293 A002487(n) = { my(s=sign(n), a=1, b=0); n = abs(n); while(n>0, if(bitand(n, 1), b+=a, a+=b); n>>=1); (s*b); }; \\ Modified from the one given in A002487, sign not actually needed here.
%o A324293 A324293(n) = A002487(sigma(n));
%Y A324293 Cf. A000203, A002487, A324287, A324294.
%K A324293 nonn
%O A324293 1,2
%A A324293 _Antti Karttunen_, Feb 22 2019