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 A084115 #6 Jul 31 2014 17:25:56 %S A084115 0,1,1,2,1,1,1,1,2,1,1,3,1,1,1,2,1,3,1,3,1,1,1,3,2,1,1,3,1,3,1,3,1,1, %T A084115 1,4,1,1,1,3,1,3,1,3,3,1,1,3,2,3,1,3,1,3,1,3,1,1,1,3,1,1,3,2,1,3,1,3, %U A084115 1,3,1,3,1,1,3,3,1,3,1,3,2,1,1,3,1,1,1,3,1,3,1,3,1,1,1,3,1,3,3,4,1,3,1,3,3 %N A084115 A084113(n) minus A084114(n). %C A084115 a(n) = A084113(n) - A084114(n) = 2*A084113(n) - A032741(n) = A032741(n) - 2*A084114(n); %C A084115 a(A084116(n)) = 1. %H A084115 Reinhard Zumkeller, <a href="/A084115/b084115.txt">Table of n, a(n) for n = 1..10000</a> %o A084115 (Haskell) %o A084115 a084115 n = a084113 n - a084114 n -- _Reinhard Zumkeller_, Jul 31 2014 %Y A084115 Cf. A066423, A084116. %Y A084115 Cf. A084110, A084113, A084114. %K A084115 nonn %O A084115 1,4 %A A084115 _Reinhard Zumkeller_, May 12 2003 %E A084115 Definition fixed by _Reinhard Zumkeller_, Jul 31 2014