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A020817
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Decimal expansion of 1/sqrt(60).
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1
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1, 2, 9, 0, 9, 9, 4, 4, 4, 8, 7, 3, 5, 8, 0, 5, 6, 2, 8, 3, 9, 3, 0, 8, 8, 4, 6, 6, 5, 9, 4, 1, 3, 3, 2, 0, 3, 6, 1, 0, 9, 7, 3, 9, 0, 1, 7, 6, 3, 8, 6, 3, 6, 0, 8, 8, 6, 2, 5, 2, 4, 5, 8, 8, 7, 0, 4, 4, 9, 4, 3, 6, 3, 9, 7, 8, 9, 9, 3, 0, 1, 1, 1, 7, 3, 0, 9, 5, 7, 9, 2, 2, 8, 6, 2, 2, 4, 5, 0
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Equals 0.12909...= sqrt(5/3)/10 where sqrt(5/3) = sum_{n=0..infinity} binomial(2n,n)/10^n [Lehmer, Am. Math. Monthly 92 (1985) 449] [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 04 2009]
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MATHEMATICA
| RealDigits[N[1/Sqrt[60], 200]] (* From Vladimir Joseph Stephan Orlovsky, Jun 12 2011 *)
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CROSSREFS
| Sequence in context: A021348 A192938 A188619 * A133768 A085333 A128892
Adjacent sequences: A020814 A020815 A020816 * A020818 A020819 A020820
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KEYWORD
| nonn,cons
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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