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 A202284 #9 Feb 07 2025 16:44:07
%S A202284 8,1,5,0,0,1,8,2,3,8,6,6,9,8,1,3,6,5,0,0,6,4,6,4,7,4,5,0,7,7,4,9,8,3,
%T A202284 9,4,1,6,7,6,1,2,4,8,4,4,2,0,6,6,0,5,4,6,3,0,0,8,7,3,6,7,2,0,5,4,7,8,
%U A202284 4,4,8,3,9,3,9,3,2,5,1,1,3,0,3,2,4,5,4,4,0,1,7,0,5,3,0,7,1,7,6
%N A202284 Decimal expansion of x>0 satisfying x*sinh(2x)=2.
%C A202284 See A201939 for a guide to related sequences. The Mathematica program includes a graph.
%e A202284 x=0.81500182386698136500646474507749839416761248...
%t A202284 u = 2; v = 2;
%t A202284 f[x_] := x*Sinh[u*x]; g[x_] := v
%t A202284 Plot[{f[x], g[x]}, {x, 0, 1}, {AxesOrigin -> {0, 0}}]
%t A202284 r = x /. FindRoot[f[x] == g[x], {x, .8, .9}, WorkingPrecision -> 110]
%t A202284 RealDigits[r] (* A202284 *)
%Y A202284 Cf. A201946.
%K A202284 nonn,cons
%O A202284 0,1
%A A202284 _Clark Kimberling_, Dec 15 2011