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 A182369 #52 Feb 16 2025 08:33:13 %S A182369 8,6,7,5,3,0,9,0,1,9,8,1,6,8,5,4,0,9,7,5,5,8,2,7,5,2,2,4,9,6,1,4,3,1, %T A182369 8,3,8,4,4,0,2,9,7,2,3,1,3,2,8,1,1,6,9,3,7,7,1,5,6,5,8,9,5,6,1,7,6,0, %U A182369 6,0,3,9,0,3,5,9,1,8,9,7,8,3,5,4,0,3,1,2,6,0,6,4,5,9,5,0,5,4,2,7,9,7,1,3,6,8,9,8 %N A182369 Decimal expansion of (7^(e - 1/e) - 9)*Pi^2, also known as Jenny's constant. %C A182369 First few digits reproduce the digits of the phone number in the song "867-5309/Jenny" performed by Tommy Tutone (see A104175). %C A182369 The next digit is a 0, and the following 4 digits (1, 9, 8, 1) are the year the song was recorded (1981). (Noticed by Rob Johnson of the explainxkcd.com forums) %H A182369 Ivan Panchenko, <a href="/A182369/b182369.txt">Table of n, a(n) for n = 3..1000</a> %H A182369 explain xkcd, <a href="http://www.explainxkcd.com/wiki/index.php?title=1047:_Approximations">1047: Approximations</a>. %H A182369 Robert Munafo, <a href="http://www.mrob.com/pub/math/numbers-12.html#lb867_530">867.5309019816854...</a> %H A182369 Randall Munroe, <a href="http://xkcd.com/1047/">xkcd: A Table of Slightly Wrong Equations and Identities Useful for Approximations and/or Trolling Teachers</a> %H A182369 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/JennysConstant.html">Jenny's Constant</a> %H A182369 Wikipedia, <a href="http://en.wikipedia.org/wiki/867-5309/Jenny">867-5309/Jenny</a> %F A182369 (7^(e - 1/e) - 9)*Pi^2. %e A182369 867.530901981685409755827522496143183844029723... %t A182369 RealDigits[(7^(E-1/E)-9)Pi^2,10,120][[1]] (* _Harvey P. Dale_, Dec 31 2018 *) %Y A182369 Cf. A000796, A001113, A104175. %K A182369 nonn,cons %O A182369 3,1 %A A182369 _Eric W. Weisstein_, Apr 26 2012 %E A182369 Title edited by _Matthew Vandermast_, May 05 2012