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 A175380 Decimal expansion of Gamma(1/5). 20
 4, 5, 9, 0, 8, 4, 3, 7, 1, 1, 9, 9, 8, 8, 0, 3, 0, 5, 3, 2, 0, 4, 7, 5, 8, 2, 7, 5, 9, 2, 9, 1, 5, 2, 0, 0, 3, 4, 3, 4, 1, 0, 9, 9, 9, 8, 2, 9, 3, 4, 0, 3, 0, 1, 7, 7, 8, 8, 8, 5, 3, 1, 3, 6, 2, 3, 0, 0, 3, 9, 2, 7, 3, 1, 0, 6, 4, 4, 4, 9, 9, 8, 9, 7, 4, 0, 3, 9, 4, 0, 8, 2, 8, 7, 7, 8, 5, 0, 7, 4, 5, 6, 9, 1, 2 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS G. C. Greubel, Table of n, a(n) for n = 1..5000 R. Vidunas, Expressions for values of the Gamma function, arxiv:math/0403510 [math.CA], 2004. FORMULA Equals Pi * sqrt(2) * sqrt(5 + sqrt(5)) / (sqrt(5) * Gamma(4/5) ) = A063448 * sqrt(5 + A002163) / (A002163 * Gamma(4/5)) where Gamma(4/5) = 1.1642297... EXAMPLE Equals 4.590843711998803053204758275929152... MAPLE evalf(GAMMA(1/5)); MATHEMATICA RealDigits[Gamma[1/5], 10, 120][[1]] (* Harvey P. Dale, May 26 2011 *) PROG (PARI) gamma(1/5) \\ G. C. Greubel, Jan 15 2017 (MAGMA) SetDefaultRealField(RealField(100)); Gamma(1/5); // G. C. Greubel, Mar 10 2018 CROSSREFS Sequence in context: A140315 A055497 A194419 * A263151 A093088 A234430 Adjacent sequences:  A175377 A175378 A175379 * A175381 A175382 A175383 KEYWORD cons,nonn,changed AUTHOR R. J. Mathar, Apr 24 2010 STATUS approved

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Last modified March 18 08:02 EDT 2018. Contains 300719 sequences. (Running on oeis4.)