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A161013 Decimal expansion of tan(1/4). 2
2, 5, 5, 3, 4, 1, 9, 2, 1, 2, 2, 1, 0, 3, 6, 2, 6, 6, 5, 0, 4, 4, 8, 2, 2, 3, 6, 4, 9, 0, 4, 7, 3, 6, 7, 8, 2, 0, 4, 2, 0, 1, 6, 3, 8, 8, 0, 0, 8, 2, 2, 6, 2, 1, 7, 4, 0, 4, 7, 5, 6, 5, 0, 2, 5, 8, 8, 8, 3, 1, 9, 8, 1, 3, 4, 6, 5, 4, 2, 5, 7, 9, 4, 9, 3, 1, 6, 5, 0, 2, 6, 3, 1, 0, 5, 5, 0, 4, 5, 3, 9, 6, 4, 1, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019

LINKS

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

Index entries for transcendental numbers

EXAMPLE

0.255341921221036266504482236490473678204201638800822621740475650258883...

MATHEMATICA

RealDigits[Tan[1/4], 10, 120][[1]] (* Harvey P. Dale, May 23 2019 *)

PROG

(PARI) default(realprecision, 20080); x=10*tan(1/4); for (n=0, 20000, d=floor(x); x=(x-d)*10; write("b161013.txt", n, " ", d));

CROSSREFS

Cf. A019427 Continued fraction.

Sequence in context: A153821 A153879 A074250 * A115522 A190283 A272414

Adjacent sequences:  A161010 A161011 A161012 * A161014 A161015 A161016

KEYWORD

cons,nonn

AUTHOR

Harry J. Smith, Jun 13 2009

STATUS

approved

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Last modified February 24 00:51 EST 2020. Contains 332195 sequences. (Running on oeis4.)