A201336 - OEIS

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A201336

Decimal expansion of x satisfying 9*x^2 = cot(x) and 0 < x < Pi.

4, 6, 8, 5, 4, 0, 5, 4, 7, 6, 8, 9, 1, 2, 8, 6, 5, 9, 1, 2, 2, 9, 2, 7, 7, 8, 5, 7, 6, 1, 7, 4, 3, 1, 3, 1, 1, 4, 6, 0, 2, 2, 6, 7, 1, 6, 1, 4, 6, 6, 3, 0, 2, 9, 6, 7, 0, 1, 5, 9, 2, 9, 0, 6, 2, 5, 9, 5, 2, 4, 4, 9, 6, 2, 6, 5, 8, 2, 1, 2, 1, 6, 7, 2, 2, 9, 9, 2, 7, 8, 0, 1, 2, 3, 0, 1, 7, 5, 7

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,1

COMMENTS

See A201280 for a guide to related sequences. The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=0.4685405476891286591229277857617431311460...

MATHEMATICA

a = 9; c = 0;

f[x_] := a*x^2 + c; g[x_] := Cot[x]