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 A318655 #11 Sep 01 2018 22:28:10 %S A318655 0,1,0,1,0,0,0,2,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,2,0,0, %T A318655 0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,2,0,0,0,0, %U A318655 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0 %N A318655 The 2-adic valuation of A318649, the numerators of "Dirichlet Square Root" of squares. %C A318655 Probably also the 2-adic valuation of A318511. %H A318655 Antti Karttunen, <a href="/A318655/b318655.txt">Table of n, a(n) for n = 1..65537</a> %F A318655 a(n) = A007814(A318649(n)). %F A318655 It seems that for all n >= 1, a(n) <= A007814(A064549(n)) <= A007814(A000290(n)). %o A318655 (PARI) A318655(n) = valuation(A318649(n),2); \\ Needs also code from A318649. %Y A318655 Cf. A318511, A318649, A318651, A318652, A318654 (the positions of nonzero terms). %K A318655 nonn %O A318655 1,8 %A A318655 _Antti Karttunen_, Sep 01 2018