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 A139347 Decimal expansion of negated tangent of the golden ratio. That is, the decimal expansion of -tan((1+sqrt(5))/2). 6
 2, 1, 1, 5, 3, 8, 0, 0, 7, 8, 2, 4, 9, 3, 2, 7, 4, 6, 4, 8, 5, 8, 6, 2, 8, 1, 1, 7, 0, 3, 2, 5, 8, 2, 5, 5, 9, 7, 8, 8, 1, 2, 4, 3, 6, 7, 4, 6, 4, 8, 2, 6, 0, 8, 6, 3, 7, 0, 7, 5, 6, 8, 9, 4, 5, 9, 9, 4, 5, 9, 8, 7, 2, 7, 5, 9, 3, 2, 8, 2, 0, 2, 6, 8, 0, 0, 3, 5, 4, 7, 7, 5, 6, 0, 6, 9, 6, 3, 4, 2, 5, 8, 1, 4, 5 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019 LINKS EXAMPLE tan(A001622) = -21.153801... PROG (PARI) -tan((sqrt(5)+1)/2) \\ Charles R Greathouse IV, May 13 2019 CROSSREFS Cf. A001622, A094214, A104457, A098317, A002390, A139339, A139340, A139341, A139342, A139345, A139346. Sequence in context: A232187 A076241 A316399 * A288620 A263324 A284949 Adjacent sequences:  A139344 A139345 A139346 * A139348 A139349 A139350 KEYWORD nonn,cons AUTHOR Mohammad K. Azarian, Apr 15 2008 EXTENSIONS Offset corrected by Mohammad K. Azarian, Dec 13 2008 Added sign in definition R. J. Mathar, Feb 05 2009 STATUS approved

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Last modified September 19 05:46 EDT 2021. Contains 347551 sequences. (Running on oeis4.)