

A049471


Decimal expansion of tan(1).


10



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

1,2


COMMENTS

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


LINKS

Harry J. Smith, Table of n, a(n) for n = 1..20000
Mohammad K. Azarian, FortyFive Nested Equilateral Triangles and cosecant of 1 degree, Problem 813, College Mathematics Journal, Vol. 36, No. 5, November 2005, p. 413414.
Mohammad K. Azarian, Solution of FortyFive Nested Equilateral Triangles and cosecant of 1 degree, Problem 813, College Mathematics Journal, Vol. 37, No. 5, November 2006, pp. 394395.
Index entries for transcendental numbers


EXAMPLE

1.5574077246549022305...


PROG

(PARI) default(realprecision, 20080); x=tan(1); for (n=1, 20000, d=floor(x); x=(xd)*10; write("b049471.txt", n, " ", d)); \\


CROSSREFS

Cf. A093178 (continued fraction), A009001.
Sequence in context: A061382 A113272 A222392 * A049789 A234473 A011500
Adjacent sequences: A049468 A049469 A049470 * A049472 A049473 A049474


KEYWORD

cons,easy,nonn


AUTHOR

Albert du Toit (dutwa(AT)intekom.co.za), N. J. A. Sloane


STATUS

approved



