%I #7 Feb 20 2022 19:31:07
%S 7,3,1,8,8,1,3,0,7,9,1,2,9,8,6,6,6,7,2,1,5,6,7,0,5,9,9,4,7,7,3,3,4,0,
%T 4,0,7,4,8,7,0,4,7,1,4,7,3,0,6,6,4,3,2,5,2,1,7,2,7,0,1,7,6,9,9,2,2,3,
%U 9,0,3,5,4,6,2,3,1,4,2,4,0,5,5,0,3,6,3,4,6,3,2,9,1,1,2,0,4,1,9,3,8,9,8,0,0
%N Decimal expansion of (21+5*sqrt(21))/6.
%C Continued fraction expansion of (21+5*sqrt(21))/6 is A010705 preceded by 7.
%H Daniel Starodubtsev, <a href="/A176435/b176435.txt">Table of n, a(n) for n = 1..10000</a>
%e (21+5*sqrt(21))/6 = 7.31881307912986667215...
%t RealDigits[(21+5*Sqrt[21])/6,10,120][[1]] (* _Harvey P. Dale_, Feb 20 2022 *)
%Y Cf. A010477 (decimal expansion of sqrt(21)), A010705 (repeat 3, 7).
%K cons,nonn
%O 1,1
%A _Klaus Brockhaus_, Apr 19 2010