This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A176220 #7 Feb 27 2020 11:55:24 %S A176220 4,0,9,7,6,1,7,6,9,6,3,4,0,3,0,3,0,9,3,9,8,2,9,0,7,0,2,7,3,5,9,8,7,5, %T A176220 1,9,6,9,5,0,5,4,3,7,1,5,3,6,3,0,0,7,9,6,9,7,5,1,5,1,1,5,2,7,1,6,0,0, %U A176220 1,1,8,5,1,0,0,2,2,0,1,3,8,2,8,3,8,7,7,0,5,7,7,8,6,6,3,8,8,8,3,5,6,0,7,9,2 %N A176220 Decimal expansion of (10+sqrt(110))/5. %C A176220 Continued fraction expansion of (10+sqrt(110))/5 is A010715. %H A176220 Daniel Starodubtsev, <a href="/A176220/b176220.txt">Table of n, a(n) for n = 1..10000</a> %e A176220 (10+sqrt(110))/5 = 4.09761769634030309398... %t A176220 RealDigits[(10+Sqrt[110])/5,10,120][[1]] (* _Harvey P. Dale_, Jan 24 2020 *) %Y A176220 Cf. A176221 (decimal expansion of sqrt(110)), A010715 (repeat 4, 10). %K A176220 cons,nonn %O A176220 1,1 %A A176220 _Klaus Brockhaus_, Apr 12 2010