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 A010508 #13 Dec 20 2015 03:17:43
%S A010508 7,4,1,6,1,9,8,4,8,7,0,9,5,6,6,2,9,4,8,7,1,1,3,9,7,4,4,0,8,0,0,7,1,3,
%T A010508 0,6,0,9,7,9,9,0,4,3,1,9,0,9,7,5,0,1,5,9,8,7,3,2,6,2,3,2,6,4,3,4,3,8,
%U A010508 3,0,1,8,4,3,1,3,8,5,0,2,4,2,7,5,3,0,0,9,2,1,3,1,9,5,8,2,4,9,4
%N A010508 Decimal expansion of square root of 55.
%C A010508 Continued fraction expansion is 7 followed by {2, 2, 2, 14} repeated. - _Harry J. Smith_, Jun 06 2009
%H A010508 Harry J. Smith, <a href="/A010508/b010508.txt">Table of n, a(n) for n = 1..20000</a>
%e A010508 7.416198487095662948711397440800713060979904319097501598732623264343830... - _Harry J. Smith_, Jun 06 2009
%t A010508 RealDigits[N[Sqrt[55],200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 25 2011 *)
%o A010508 (PARI) { default(realprecision, 20080); x=sqrt(55); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010508.txt", n, " ", d)); } \\ _Harry J. Smith_, Jun 06 2009
%Y A010508 Cf. A010141 Continued fraction. - _Harry J. Smith_, Jun 06 2009
%K A010508 nonn,cons
%O A010508 1,1
%A A010508 _N. J. A. Sloane_