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 A200134 Decimal expansion of the negated value of the digamma function at 3/4. 5
 1, 0, 8, 5, 8, 6, 0, 8, 7, 9, 7, 8, 6, 4, 7, 2, 1, 6, 9, 6, 2, 6, 8, 8, 6, 7, 6, 2, 8, 1, 7, 1, 8, 0, 6, 9, 3, 1, 7, 0, 0, 7, 5, 0, 3, 9, 3, 3, 3, 1, 3, 6, 4, 5, 0, 6, 8, 0, 3, 3, 4, 9, 6, 7, 2, 1, 1, 1, 4, 0, 3, 8, 9, 5, 4, 3, 6, 4, 4, 3, 1, 8, 4, 4, 0, 5, 1, 9, 6, 3, 1, 6, 0, 9, 9, 4, 4 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS G. C. Greubel, Table of n, a(n) for n = 1..10000 Wikipedia, Digamma function FORMULA Psi(3/4) = -gamma + Pi/2 - 3*log(2) = A000796 - A020777 = 3.14159... - 4.22745... Pi = gamma(0,1/4) - gamma(0,3/4) = A020777 - A200134, where gamma(n,x) denotes the generalized Stieltjes constants. - Peter Luschny, May 16 2018 EXAMPLE Psi(3/4) = -1.085860879786472169626886762817... MAPLE evalf(-gamma+Pi/2-3*log(2)) ; MATHEMATICA RealDigits[ -PolyGamma[3/4], 10, 97] // First (* Jean-François Alcover, Feb 20 2013 *) N[StieltjesGamma[0, 3/4], 99] (* Peter Luschny, May 16 2018 *) PROG (PARI) -psi(3/4) \\ Charles R Greathouse IV, Nov 22 2011 (MAGMA) SetDefaultRealField(RealField(100)); R:= RealField(); -EulerGamma(R) + Pi(R)/2 - 3*Log(2); // G. C. Greubel, Aug 29 2018 CROSSREFS Cf. A001620, A020759, A020777, A047787, A301816. Sequence in context: A153799 A086235 A157742 * A021542 A198136 A308743 Adjacent sequences:  A200131 A200132 A200133 * A200135 A200136 A200137 KEYWORD cons,nonn AUTHOR R. J. Mathar, Nov 13 2011 STATUS approved

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Last modified July 17 23:21 EDT 2019. Contains 325109 sequences. (Running on oeis4.)