%I #5 Feb 13 2018 19:17:57
%S 2,0,7,6,7,2,6,9,8,2,5,4,9,5,4,3,8,9,4,3,7,4,4,7,1,7,2,9,8,4,5,4,3,2,
%T 3,3,1,8,2,1,4,2,6,1,0,1,4,2,5,3,3,9,2,2,9,6,0,2,8,3,2,8,4,2,8,1,8,2,
%U 9,8,7,2,2,2,5,4,5,7,1,3,0,5,4,0,5,4
%N Decimal expansion of (1/2)(1 + sqrt(1 + 4*sqrt(5))).
%H Clark Kimberling, <a href="/A298749/b298749.txt">Table of n, a(n) for n = 1..10000</a>
%e constant = 2.0767269825495438944... = positive zero of x^2 - x - sqrt(5).
%t r = (1/2)*(1 + Sqrt[1 + 4 Sqrt[5]])
%t RealDigits[N[r, 100], 10][[1]]; (* A298749 *)
%Y Cf. A275828, A298750, A298751, A298752.
%K nonn,easy,cons
%O 1,1
%A _Clark Kimberling_, Feb 13 2018