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 A318513 #5 Aug 30 2018 22:41:21 %S A318513 0,0,1,0,1,0,1,0,3,0,1,0,1,0,2,0,1,2,1,0,2,0,1,0,3,0,4,0,1,1,1,0,2,0, %T A318513 2,2,1,0,2,0,1,1,1,0,4,0,1,0,3,2,2,0,1,3,2,0,2,0,1,1,1,0,4,0,2,1,1,0, %U A318513 2,1,1,1,1,0,4,0,2,1,1,0,7,0,1,1,2,0,2,0,1,3,2,0,2,0,2,0,1,2,4,2,1,1,1,0,3 %N A318513 The 2-adic valuation of A318512. %H A318513 Antti Karttunen, <a href="/A318513/b318513.txt">Table of n, a(n) for n = 1..65537</a> %F A318513 a(n) = A007814(A318512(n)). %o A318513 (PARI) A318513(n) = valuation(A318512(n),2); \\ Needs also code from A318512. %Y A318513 Cf. A318512. %K A318513 nonn %O A318513 1,9 %A A318513 _Antti Karttunen_, Aug 30 2018