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 A284575 #6 Apr 10 2017 12:29:19 %S A284575 0,2,1,0,2,2,0,0,1,0,1,0,0,0,0,0,2,1,0,2,2,2,0,0,0,2,0,2,0,0,0,0,1,0, %T A284575 2,1,0,0,1,1,1,0,1,0,0,0,0,0,0,2,1,0,0,0,1,1,0,2,0,2,0,0,0,0,2,1,0,2, %U A284575 1,1,2,2,0,2,0,2,2,2,2,2,2,1,0,2,2,2,0,0,0,2,0,2,0,0,0,0,0,2,1,0,2,2,0,0,0,2,0,2,2,2,2,2,0,2,1,0,0,0,1,1,0 %N A284575 a(n) = A048725(n) mod 3. %H A284575 Antti Karttunen, <a href="/A284575/b284575.txt">Table of n, a(n) for n = 0..8192</a> %H A284575 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %F A284575 a(n) = A048725(n) mod 3. %o A284575 (Scheme) (define (A284575 n) (modulo (A048725 n) 3)) %Y A284575 Cf. A048725, A284557, A284574. %K A284575 nonn,base %O A284575 0,2 %A A284575 _Antti Karttunen_, Apr 10 2017