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 A358517 #35 Nov 21 2024 08:20:49 %S A358517 0,2,2,5,8,8,7,2,2,2,3,9,7,8,1,2,3,7,6,6,8,9,2,8,4,8,5,8,3,2,7,0,6,2, %T A358517 7,2,3,0,2,0,0,0,5,3,7,4,4,1,0,2,1,0,1,6,4,8,2,7,2,0,0,3,7,9,7,3,5,7, %U A358517 4,4,8,7,8,7,8,7,7,8,8,6,2,4,2,3,4,5,3,3,0,7,9,8,5,6,7 %N A358517 Decimal expansion of 4*log(2) - 11/4. %H A358517 Michael Ian Shamos, <a href="https://citeseerx.ist.psu.edu/pdf/ae33a269baba5e8b1038e719fb3209e8a00abec5">A catalog of the real numbers</a> (2011), p. 63. %H A358517 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A358517 Equals Sum_{k>=1} (-1)^(k+1) * k/((k + 1)*(k + 2)*(k + 3)) [Shamos]. %F A358517 Equals Sum_{k>=1} (-1)^(k+1)/((k+1)^2*(k+2)^2). %F A358517 Equals Sum_{k>=3} (-1)^(k+1)/A035287(k). - _Amiram Eldar_, Nov 21 2022 %e A358517 0.0225887222397812376689284858327062723020005374... %t A358517 Join[{0}, RealDigits[4*Log[2] - 11/4, 10, 120][[1]]] (* _Amiram Eldar_, Nov 21 2022 *) %o A358517 (PARI) 4*log(2) - 11/4 %Y A358517 Cf. A016639, A035287, A242023, A242024, A358516, A358519. %Y A358517 Cf. A002162. %K A358517 nonn,cons %O A358517 0,2 %A A358517 _Claude H. R. Dequatre_, Nov 20 2022