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%I #7 Feb 19 2020 09:57:51
%S 2,2,9,0,9,9,4,4,4,8,7,3,5,8,0,5,6,2,8,3,9,3,0,8,8,4,6,6,5,9,4,1,3,3,
%T 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,
%U 9,4,3,6,3,9,7,8,9,9,3,0,1,1,1,7,3,0,9,5,7,9,2,2,8,6,2,2,4,5,0,5,9,7,2,1,0
%N Decimal expansion of (3+sqrt(15))/3.
%C Continued fraction expansion of (3+sqrt(15))/3 is A010693.
%C a(n) = A020817(n-1) for n > 1; a(1) = 2.
%H Daniel Starodubtsev, <a href="/A176020/b176020.txt">Table of n, a(n) for n = 1..10000</a>
%e (3+sqrt(15))/3 = 2.29099444873580562839...
%t RealDigits[(3+Sqrt[15])/3,10,120][[1]] (* _Harvey P. Dale_, May 20 2013 *)
%Y Cf. A010472 (decimal expansion of sqrt(15)), A176016 (decimal expansion of (3+sqrt(15))/6), A010693 (repeat 2, 3), A020817 (decimal expansion of 1/sqrt(60)).
%K cons,nonn
%O 1,1
%A _Klaus Brockhaus_, Apr 06 2010
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