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 A111768 #17 May 15 2019 12:27:58 %S A111768 2,4,7,0,2,7,9,1,9,4,8,7,0,6,5,9,0,1,3,6,9,1,5,4,0,7,9,0,8,6,8,8,4,9, %T A111768 2,6,9,3,8,6,2,8,8,3,2,4,6,7,4,7,7,3,6,6,1,7,0,4,4,6,2,9,6,0,4,4,5,0, %U A111768 3,4,3,5,2,4,4,4,0,1,2,8,4,1,5,0,4,2,9,6,1,9,9,9,6,8,2,1,1,1,0,4,4,6,7,1,7 %N A111768 Decimal expansion of (abs(log(tan(1 degree))))^(-1). %H A111768 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %e A111768 0.2470279194870659013691540790868849269386288324674773661704462960... %t A111768 RealDigits[1/Abs[Log[Tan[1 Degree]]],10,120][[1]] (* _Harvey P. Dale_, Nov 21 2018 *) %o A111768 (PARI) 1/abs(log(tan(Pi/180))) \\ _Michel Marcus_, Jul 06 2015 %Y A111768 Cf. A019810, A019898. %K A111768 cons,nonn %O A111768 0,1 %A A111768 _Mohammad K. Azarian_, Nov 21 2005 %E A111768 Offset changed by _Mohammad K. Azarian_, Dec 11 2008