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Table of n, a(n) for n=1..105.
R. Vidunas, Expressions for values of the Gamma function, arxiv:math/0403510.
Wikipedia, Particular values of the Gamma function: General rational arguments
Index to sequences related to the gamma function
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...
RealDigits[Gamma[1/5], 10, 120][] (* Harvey P. Dale, May 26 2011 *)
Sequence in context: A140315 A055497 A194419 * A093088 A234430 A019637
Adjacent sequences: A175377 A175378 A175379 * A175381 A175382 A175383
R. J. Mathar, Apr 24 2010