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 A283749 #17 Mar 16 2017 06:37:20 %S A283749 9,9,4,1,6,6,6,7,8,1,2,0,6,7,6,3,3,8,6,9,0,6,2,1,7,8,8,6,9,5,5,5,8,5, %T A283749 1,2,8,2,5,2,2,9,7,4,3,4,3,1,9,2,2,9,8,6,5,0,4,7,0,8,7,9,0,3,2,2,4,6, %U A283749 5,8,8,4,8,6,7,8,8,8,4,6,8,8,4,6,6,3,0,5,5,3,7,6,3,5,1,9,5,4,0,1,5,1,6,5,1,4,7,9,8,7,0 %N A283749 Decimal expansion of the limit of the nested sin(1+ sin(2+ sin(3+ sin(4+ ...)))). %C A283749 In radians. %C A283749 No closed form expression is known. %C A283749 Probably transcendental but this has not been proved. %C A283749 By Lindemann's theorem, at most one of sin(1+ sin(2+ sin(3+...))) and sin(2+ sin(3+ sin(4+ ...))) is algebraic. - _Robert Israel_, Mar 15 2017 %e A283749 0.9941666781206763386906217886955585128252297434319229865047087903224658848... %t A283749 RealDigits[Fold[ Sin[#1 + #2] &, 0, Reverse[Range[284]]], 10, 111][[1]] %Y A283749 Cf. A072449, A277313. %K A283749 cons,nonn %O A283749 0,1 %A A283749 _Alex Klotz_ and _Robert G. Wilson v_, Mar 15 2017