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A201944 Decimal expansion of x>0 satisfying x*cosh(2x)=1. 2
5, 7, 5, 2, 9, 2, 4, 8, 3, 7, 0, 9, 3, 3, 1, 9, 7, 4, 7, 6, 7, 4, 6, 6, 8, 6, 6, 8, 0, 6, 8, 9, 4, 0, 9, 7, 8, 8, 3, 4, 1, 8, 7, 4, 7, 4, 2, 2, 1, 2, 1, 1, 7, 0, 5, 9, 1, 6, 9, 6, 2, 5, 9, 0, 4, 4, 1, 6, 1, 2, 7, 3, 0, 8, 8, 2, 0, 5, 8, 6, 4, 0, 0, 6, 8, 3, 7, 7, 2, 0, 7, 2, 6, 2, 3, 4, 9, 7, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

See A201939 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

Table of n, a(n) for n=0..98.

EXAMPLE

x=0.5752924837093319747674668668068940978834187...

MATHEMATICA

u = 2; v = 1;

f[x_] := x*Cosh[u*x]; g[x_] := v

Plot[{f[x], g[x]}, {x, 0, 1}, {AxesOrigin -> {0, 0}}]

r = x /. FindRoot[f[x] == g[x], {x, .57, .58}, WorkingPrecision -> 110]

RealDigits[r]    (* A201944 *)

CROSSREFS

Cf. A201939.

Sequence in context: A242059 A178668 A198744 * A165242 A104542 A161376

Adjacent sequences:  A201941 A201942 A201943 * A201945 A201946 A201947

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Dec 15 2011

STATUS

approved

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Last modified June 17 18:55 EDT 2019. Contains 324198 sequences. (Running on oeis4.)