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A019427
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Continued fraction for tan(1/4).
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2
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0, 3, 1, 10, 1, 18, 1, 26, 1, 34, 1, 42, 1, 50, 1, 58, 1, 66, 1, 74, 1, 82, 1, 90, 1, 98, 1, 106, 1, 114, 1, 122, 1, 130, 1, 138, 1, 146, 1, 154, 1, 162, 1, 170, 1, 178, 1, 186, 1, 194, 1, 202, 1, 210, 1, 218, 1, 226, 1, 234, 1, 242, 1, 250, 1, 258, 1, 266, 1, 274, 1, 282, 1, 290, 1, 298, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Harry J. Smith, Table of n, a(n) for n=0,...,20000
G. Xiao, Contfrac
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EXAMPLE
| 0.25534192122103626650448223... = 0 + 1/(3 + 1/(1 + 1/(10 + 1/(1 + ...)))) [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 13 2009]
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PROG
| (PARI) { allocatemem(932245000); default(realprecision, 91000); x=contfrac(tan(1/4)); for (n=0, 20000, write("b019427.txt", n, " ", x[n+1])); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 13 2009]
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CROSSREFS
| Cf. A161013 Decimal expansion. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 13 2009]
Sequence in context: A010289 A127613 A178866 * A008299 A016478 A102430
Adjacent sequences: A019424 A019425 A019426 * A019428 A019429 A019430
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KEYWORD
| nonn,cofr
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AUTHOR
| David W. Wilson (davidwwilson(AT)comcast.net)
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