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A060402 Continued fraction expansion of tanh(pi). 3
0, 1, 267, 4, 14, 1, 2, 1, 2, 2, 1, 2, 3, 8, 3, 1, 5, 4, 1, 14, 10, 1, 20, 38, 1, 2, 7, 5, 2, 1, 10, 1, 6, 1, 6, 1, 2, 3, 2, 1, 7, 1, 1, 5, 12, 2, 1, 1, 1, 2, 1, 1, 1, 34, 1, 8, 1, 33, 1, 4, 7, 1, 2, 56, 1, 3, 1, 34, 9, 1, 1, 7, 1, 3, 1, 7, 1, 4, 3, 1, 2, 14, 1, 10, 2, 51, 1, 6, 7, 17, 1, 14, 1, 8, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

J. M. Borwein, D. H. Bailey and R. Girgensohn, Experimentation in Mathematics, A K Peters, Ltd., Natick, MA, 2004. x+357 pp. See p. 11.

LINKS

Harry J. Smith, Table of n, a(n) for n = 0..20000

EXAMPLE

0.996272076220749944264690... = 0 + 1/(1 + 1/(267 + 1/(4 + 1/(14 + ...)))). - Harry J. Smith, Jul 04 2009

MAPLE

with(numtheory): c := cfrac (tanh(Pi), 300, 'quotients');

PROG

(PARI) { allocatemem(932245000); default(realprecision, 21000); x=contfrac(tanh(Pi)); for (n=0, 20000, write("b060402.txt", n, " ", x[n+1])); } \\ Harry J. Smith, Jul 04 2009

CROSSREFS

Cf. A083124, A190352.

Sequence in context: A278625 A144662 A278307 * A306120 A232106 A049014

Adjacent sequences:  A060399 A060400 A060401 * A060403 A060404 A060405

KEYWORD

nonn,cofr,easy

AUTHOR

Bill Gosper, Apr 04 2001

EXTENSIONS

More terms from James A. Sellers, Apr 06 2001

STATUS

approved

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Last modified September 28 08:33 EDT 2020. Contains 337394 sequences. (Running on oeis4.)