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 A364253 #12 Jul 16 2023 20:32:19 %S A364253 1,1,0,2,-10,0,0,4,4,-20,-52,0,-242,0,-14,8,-494,8,-1004,-40,8,-104, %T A364253 -2024,0,2,-484,18,0,-4066,-28,0,16,-92,-988,8,16,-16346,-2008,-470, %U A364253 -80,-32726,16,-65492,-208,-12,-4048,-262096,0,38,4,-970,-968,-1048522,36,-64,0,-1988,-8132,-2097092,-56,-4194242,0,38,32 %N A364253 a(n) = n - A332215(n). %H A364253 Antti Karttunen, <a href="/A364253/b364253.txt">Table of n, a(n) for n = 1..8192</a> %F A364253 For n > 1, a(2*n) = 2*a(n). %F A364253 For all n >= 1, a(A335431(n)) = 0. %o A364253 (PARI) A364253(n) = (n - A332215(n)); %Y A364253 Cf. A332215, A335431 (conjectured positions of 0's), A364254. %K A364253 sign %O A364253 1,4 %A A364253 _Antti Karttunen_, Jul 16 2023