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 A020793 Decimal expansion of 1/6. 6
 1, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Except for the first term identical to A010722, A040006 and A021019. Except for the first terms the same as A021028, A021100, A021388, A071279, A101272, A168608, A177057,... - M. F. Hasler, Oct 24 2011 Decimal expansion of gamma(1) = 5/3 (with offset 1), where gamma(n) = Cp(n)/Cv(n) = is the n-th Poisson's constant. For the definition of Cp and Cv see A272002. - Natan Arie Consigli, Jul 10 2016 LINKS Table of n, a(n) for n=0..98. Wikipedia, Poisson's constant. FORMULA a(n) = 6^n mod 10. - Zerinvary Lajos, Nov 26 2009 Equals Sum_{k>=1} 1/7^k. - Bruno Berselli, Jan 03 2014 10 * 1/6 = 5/3 = (5/2 R)/(3/2 R) = Cp(1)/Cv(1) = A272002/A272001, with R = A081822 (or A070064). - Natan Arie Consigli, Jul 10 2016 G.f.: (1 + 5*x)/(1 - x). - Ilya Gutkovskiy, Jul 10 2016 Equals Sum_{k>=1} 1/(k*Pi)^2. - Maciej Kaniewski, Sep 14 2017 Equals Sum_{k>=1} (zeta(2*k)-1)/4^k. - Amiram Eldar, Jun 08 2021 MATHEMATICA RealDigits[1/6, 10, 120][[1]] (* or *) PadRight[{1}, 120, {6}] (* Harvey P. Dale, Dec 30 2018 *) PROG (PARI) a(n)=6-5*!n \\ M. F. Hasler, Oct 24 2011 CROSSREFS Sequence in context: A165057 A165059 A010722 * A021019 A177057 A362115 Adjacent sequences: A020790 A020791 A020792 * A020794 A020795 A020796 KEYWORD nonn,cons,easy AUTHOR N. J. A. Sloane. STATUS approved

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Last modified May 28 04:05 EDT 2023. Contains 362992 sequences. (Running on oeis4.)