A200702 - OEIS

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A200702

Decimal expansion of least x>0 satisfying 1-7*x^2=tan(x).

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

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

OFFSET

0,1

COMMENTS

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

LINKS

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

EXAMPLE

x=0.311278884175936867896799265688213218171523710...

MATHEMATICA

a = -7; c = 1;

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