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 A318451 #8 Aug 30 2018 08:35:19 %S A318451 0,0,1,0,1,1,1,0,3,1,1,1,1,1,2,0,1,3,1,1,2,1,1,1,3,1,4,1,1,2,1,0,2,1, %T A318451 2,3,1,1,2,1,1,2,1,1,4,1,1,1,3,3,2,1,1,4,2,1,2,1,1,2,1,1,4,0,2,2,1,1, %U A318451 2,2,1,3,1,1,4,1,2,2,1,1,7,1,1,2,2,1,2,1,1,4,2,1,2,1,2,1,1,3,4,3,1,2,1,1,3 %N A318451 The 2-adic valuation of A318450. %H A318451 Antti Karttunen, <a href="/A318451/b318451.txt">Table of n, a(n) for n = 1..65537</a> %F A318451 a(n) = A007814(A318450(n)). %o A318451 (PARI) A318451(n) = valuation(A318450(n),2); \\ Needs also code from A318450. %Y A318451 Cf. A007814, A318450. %Y A318451 Cf. also A046645, A317946, A318315, A318455. %K A318451 nonn %O A318451 1,9 %A A318451 _Antti Karttunen_ and _Andrew Howroyd_, Aug 29 2018