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 A385647 #19 Jul 07 2025 11:53:53 %S A385647 6,5,3,4,2,6,4,0,9,7,2,0,0,2,7,3,4,5,2,9,1,3,8,3,9,3,9,2,7,0,9,1,1,7, %T A385647 1,5,9,6,2,2,4,9,9,3,2,8,1,9,8,7,2,3,7,2,9,3,9,6,5,9,9,9,5,2,5,3,3,0, %U A385647 3,1,8,9,0,1,5,1,5,2,6,4,2,1,9,7,0,6,8,3,3,6 %N A385647 Decimal expansion of 1 - log(2)/2. %C A385647 Probability that floor(x/y) is even for x, y chosen randomly in (0,1). %H A385647 Paolo Xausa, <a href="/A385647/b385647.txt">Table of n, a(n) for n = 0..10000</a> %H A385647 Morphocular, <a href="https://youtu.be/socTu-NZlUs">The answer involves Pi because why wouldn't it?</a>, YouTube video, 2025 (see second half of video). %F A385647 Equals 1 - A002162/2. %e A385647 0.65342640972002734529138393927091171596224993281987... %t A385647 First[RealDigits[1 - Log[2]/2, 10, 100]] %o A385647 (Magma) SetDefaultRealField(RealField(100)); [1 - Log(2)/2]; // _Vincenzo Librandi_, Jul 07 2025 %Y A385647 Cf. A002162, A091651. %Y A385647 Essentially the same as A382854. %K A385647 nonn,cons,easy %O A385647 0,1 %A A385647 _Paolo Xausa_, Jul 06 2025