cp's OEIS Frontend

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.

A091651 Decimal expansion of (5 - Pi)/4.

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%I A091651 #25 Jul 06 2025 12:43:34
%S A091651 4,6,4,6,0,1,8,3,6,6,0,2,5,5,1,6,9,0,3,8,4,3,3,9,1,5,4,1,8,0,1,2,4,2,
%T A091651 7,8,9,5,0,7,0,7,6,5,0,1,5,6,2,2,3,5,4,4,7,5,6,2,6,3,8,5,1,9,2,3,0,4,
%U A091651 5,8,9,8,4,2,8,4,4,7,7,5,0,3,4,2,9,9,1,2,9,3,6,6,4,4,7,0,7,3,3,0,0,4
%N A091651 Decimal expansion of (5 - Pi)/4.
%C A091651 Probability that round(x/y) is even for x,y chosen at random in (0,1).
%H A091651 Paolo Xausa, <a href="/A091651/b091651.txt">Table of n, a(n) for n = 0..10000</a>
%H A091651 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/RealNumberPicking.html">Real Number Picking</a>
%H A091651 Morphocular, <a href="https://youtu.be/socTu-NZlUs">The answer involves Pi because why wouldn't it?</a>, YouTube video, Jun 29 2025.
%H A091651 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%e A091651 0.46460183660255169038433915418012427895070765015622...
%t A091651 RealDigits[(5-Pi)/4,10,120][[1]] (* _Harvey P. Dale_, May 22 2017 *)
%o A091651 (PARI) (5-Pi)/4 \\ _Charles R Greathouse IV_, Oct 01 2022
%Y A091651 Cf. A000796, A385647.
%K A091651 nonn,cons
%O A091651 0,1
%A A091651 _Eric W. Weisstein_, Jan 25 2004