A020817 Decimal expansion of 1/sqrt(60).

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

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, Mar 04 2009]

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000

Programs

Mathematica

RealDigits[N[1/Sqrt[60], 200]] (* Vladimir Joseph Stephan Orlovsky, Jun 12 2011 *)