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 A174548 #19 Oct 02 2022 23:16:34 %S A174548 2,3,5,0,4,0,2,3,8,7,2,8,7,6,0,2,9,1,3,7,6,4,7,6,3,7,0,1,1,9,1,2,0,1, %T A174548 6,3,0,3,1,1,4,3,5,9,6,2,6,6,8,1,9,1,7,4,0,4,5,9,1,3,0,8,2,6,0,2,6,6, %U A174548 1,5,1,3,4,6,0,8,6,4,7,7,9,1,2,1,4,2,3,4,9,0,4,1,7,9,2,4,6,7,8,3,6,8,0,8,3 %N A174548 Decimal expansion of e - 1/e. %H A174548 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A174548 Equals 2 * sinh(1) = 2 * A073742. - _Amiram Eldar_, Nov 25 2020 %e A174548 2.3504023872876029137647637... %p A174548 evalf(exp(1)-exp(-1)) ; # _R. J. Mathar_, Oct 14 2011 %t A174548 RealDigits[E - 1/E, 10, 111][[1]] %o A174548 (PARI) exp(1) - exp(-1) \\ _Michel Marcus_, May 05 2019 %Y A174548 Cf. A001113 (e), A068985 (1/e), and A137204 (e + 1/e), A073742 (sinh(1)). %K A174548 cons,nonn %O A174548 1,1 %A A174548 _Paul Curtz_, Mar 22 2010 %E A174548 Edited and extended by _Robert G. Wilson v_, Apr 25 2010