cp's OEIS Frontend

A156163 Decimal expansion of (19+6*sqrt(2))/17.

%I A156163 #9 Aug 21 2023 11:20:58
%S A156163 1,6,1,6,7,8,1,2,5,7,3,0,8,1,5,1,1,9,3,6,9,4,7,1,3,6,6,7,3,6,8,1,2,8,
%T A156163 7,3,3,6,1,2,8,2,5,3,6,7,7,8,0,0,9,9,3,1,9,9,4,4,7,1,0,4,9,5,7,6,1,4,
%U A156163 3,4,9,9,2,3,9,8,3,9,0,7,1,9,5,9,4,2,5,4,4,2,3,8,8,0,3,4,4,0,8,4,4,9,4,7,1
%N A156163 Decimal expansion of (19+6*sqrt(2))/17.
%C A156163 lim_{n -> infinity} b(n)/b(n-1) = (19+6*sqrt(2))/17 for n mod 3 = {0, 2}, b = A155923.
%C A156163 lim_{n -> infinity} b(n)/b(n-1) = ((19+6*sqrt(2))/17)^2 for n mod 3 = {0, 2}, b = A156159.
%H A156163 G. C. Greubel, <a href="/A156163/b156163.txt">Table of n, a(n) for n = 1..10000</a>
%H A156163 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>
%e A156163 (19+6*sqrt(2))/17 = 1.61678125730815119369...
%t A156163 RealDigits[(19 + 6*Sqrt[2])/17, 10, 100][[1]] (* _G. C. Greubel_, Jul 05 2017 *)
%o A156163 (PARI) (6*sqrt(2)+19)/17 \\ _Charles R Greathouse IV_, Apr 25 2016
%Y A156163 Cf. A002193 (decimal expansion of sqrt(2)), A156035 (decimal expansion of 3+2*sqrt(2)), A156164 (decimal expansion of 17+12*sqrt(2)).
%K A156163 nonn,cons
%O A156163 1,2
%A A156163 _Klaus Brockhaus_, Feb 09 2009