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 A195707 Decimal expansion of arctan(sqrt(5/8)). 2
 6, 6, 8, 9, 6, 4, 0, 7, 4, 2, 6, 8, 4, 0, 7, 1, 3, 0, 1, 4, 1, 3, 2, 7, 1, 1, 2, 6, 1, 2, 1, 7, 6, 4, 7, 8, 0, 1, 6, 9, 3, 0, 7, 1, 8, 1, 1, 9, 6, 3, 4, 7, 0, 8, 1, 6, 2, 9, 2, 9, 7, 6, 0, 3, 5, 2, 0, 5, 0, 4, 1, 5, 4, 9, 0, 1, 8, 2, 2, 3, 8, 8, 0, 5, 9, 8, 6, 4, 2, 4, 0, 2, 1, 7, 7, 4, 0, 4, 3, 1 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS G. C. Greubel, Table of n, a(n) for n = 0..10000 EXAMPLE arctan(sqrt(5/8)) = 0.6689640742... MATHEMATICA r = Sqrt[5/8]; N[ArcSin[r], 100] RealDigits[%]  (* A195703 *) N[ArcCos[r], 100] RealDigits[%]  (* A195700 *) N[ArcTan[r], 100] RealDigits[%]  (* A195707 *) N[ArcCos[-r], 100] RealDigits[%]  (* A195711 *) PROG (PARI) atan(sqrt(5/8)) \\ G. C. Greubel, Aug 19 2018 (MAGMA) SetDefaultRealField(RealField(100)); Arctan(Sqrt(5/8)); // G. C. Greubel, Aug 19 2018 CROSSREFS Cf. A195700, A195703, A195711. Sequence in context: A088683 A201578 A322292 * A175217 A000509 A160257 Adjacent sequences:  A195704 A195705 A195706 * A195708 A195709 A195710 KEYWORD nonn,cons AUTHOR Clark Kimberling, Sep 23 2011 STATUS approved

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Last modified April 10 08:09 EDT 2021. Contains 342845 sequences. (Running on oeis4.)