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 A010489 #14 Feb 11 2025 14:41:51
%S A010489 5,8,3,0,9,5,1,8,9,4,8,4,5,3,0,0,4,7,0,8,7,4,1,5,2,8,7,7,5,4,5,5,8,3,
%T A010489 0,7,6,5,2,1,3,9,8,3,3,4,8,8,5,9,7,1,9,5,4,4,5,0,0,0,6,7,4,4,8,6,7,8,
%U A010489 1,0,0,6,1,9,9,6,7,1,2,6,2,7,6,6,5,2,4,0,3,2,6,4,5,3,0,3,5,3,9
%N A010489 Decimal expansion of square root of 34.
%C A010489 Continued fraction expansion is 5 followed by {1, 4, 1, 10} repeated. - _Harry J. Smith_, Jun 04 2009
%H A010489 Harry J. Smith, <a href="/A010489/b010489.txt">Table of n, a(n) for n = 1..20000</a>
%H A010489 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>.
%e A010489 5.830951894845300470874152877545583076521398334885971954450006744867810... - _Harry J. Smith_, Jun 04 2009
%t A010489 RealDigits[N[Sqrt[34],200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 24 2011 *)
%o A010489 (PARI) { default(realprecision, 20080); x=sqrt(34); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010489.txt", n, " ", d)); } \\ _Harry J. Smith_, Jun 04 2009
%Y A010489 Cf. A010132 Continued fraction. - _Harry J. Smith_, Jun 04 2009
%K A010489 nonn,cons
%O A010489 1,1
%A A010489 _N. J. A. Sloane_