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 A010537 #17 Feb 11 2025 14:47:27
%S A010537 9,2,7,3,6,1,8,4,9,5,4,9,5,7,0,3,7,5,2,5,1,6,4,1,6,0,7,3,9,9,0,1,7,4,
%T A010537 6,2,6,2,6,3,4,6,8,9,1,2,0,7,6,2,9,8,2,1,3,3,7,3,8,2,6,5,9,8,3,2,8,2,
%U A010537 3,6,8,3,6,4,6,3,8,4,3,0,2,3,2,3,2,0,4,5,8,5,7,3,5,8,4,7,4,3,8
%N A010537 Decimal expansion of square root of 86.
%C A010537 Continued fraction expansion is 9 followed by {3, 1, 1, 1, 8, 1, 1, 1, 3, 18} repeated. - _Harry J. Smith_, Jun 10 2009
%H A010537 Harry J. Smith, <a href="/A010537/b010537.txt">Table of n, a(n) for n = 1..20000</a>
%H A010537 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>.
%e A010537 9.273618495495703752516416073990174626263468912076298213373826598328236...
%t A010537 RealDigits[N[Sqrt[86],200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 04 2012 *)
%o A010537 (PARI) { default(realprecision, 20080); x=sqrt(86); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010537.txt", n, " ", d)); } \\ _Harry J. Smith_, Jun 10 2009
%Y A010537 Cf. A010159 (continued fraction).
%K A010537 nonn,cons
%O A010537 1,1
%A A010537 _N. J. A. Sloane_