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 A369882 #22 Nov 21 2024 09:27:21 %S A369882 4,4,3,1,4,7,1,8,0,5,5,9,9,4,5,3,0,9,4,1,7,2,3,2,1,2,1,4,5,8,1,7,6,5, %T A369882 6,8,0,7,5,5,0,0,1,3,4,3,6,0,2,5,5,2,5,4,1,2,0,6,8,0,0,0,9,4,9,3,3,9, %U A369882 3,6,2,1,9,6,9,6,9,4,7,1,5,6,0,5,8,6,3,3,2,6,9,9,6,4,1,8,6,8,7,5,4,2,0,0,1,4 %N A369882 Decimal expansion of log(2) - 1/4. %H A369882 Michael Ian Shamos, <a href="https://citeseerx.ist.psu.edu/pdf/ae33a269baba5e8b1038e719fb3209e8a00abec5">A catalog of the real numbers</a> (2011), p. 453. %H A369882 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A369882 Equals Sum_{k >= 2} (-1)^k*k/(k^2 - 1) [Shamos]. %F A369882 Equals Sum_{k >= 1} (-1)^(k+1)*(k + 1)/(k*(k + 2)). %e A369882 0.443147180559945309417232121458176568075500134... %t A369882 RealDigits[Log[2] - 1/4, 10, 120][[1]] (* _Amiram Eldar_, Feb 04 2024 *) %o A369882 (PARI) log(2)-1/4 %Y A369882 Cf. A358517, A365524. %Y A369882 Essentially the same as A002162 and A187832. %K A369882 nonn,cons %O A369882 0,1 %A A369882 _Claude H. R. Dequatre_, Feb 04 2024