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 A318659 #5 Aug 31 2018 16:00:05 %S A318659 0,0,1,0,1,0,1,0,3,0,1,0,1,0,2,0,1,0,1,0,2,0,1,0,3,0,4,0,1,0,1,0,2,0, %T A318659 2,0,1,0,2,0,1,0,1,0,4,0,1,0,3,0,2,0,1,0,2,0,2,0,1,0,1,0,4,0,2,0,1,0, %U A318659 2,0,1,0,1,0,4,0,2,0,1,0,7,0,1,0,2,0,2,0,1,0,2,0,2,0,2,0,1,0,4,0,1,0,1,0,3 %N A318659 The 2-adic valuation of A318658. %H A318659 Antti Karttunen, <a href="/A318659/b318659.txt">Table of n, a(n) for n = 1..65537</a> %F A318659 a(n) = A007814(A318658(n)). %o A318659 (PARI) A318659(n) = valuation(A318658(n),2); \\ Needs also code from A318658. %Y A318659 Cf. A318658. %Y A318659 Cf. also A046645. %K A318659 nonn %O A318659 1,9 %A A318659 _Antti Karttunen_, Aug 31 2018