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 A010495 #22 Feb 11 2025 10:00:57
%S A010495 6,4,0,3,1,2,4,2,3,7,4,3,2,8,4,8,6,8,6,4,8,8,2,1,7,6,7,4,6,2,1,8,1,3,
%T A010495 2,6,4,5,2,0,4,2,0,1,3,2,6,2,1,0,1,8,8,8,5,5,2,9,2,7,2,6,2,6,6,6,8,1,
%U A010495 8,2,7,5,8,1,9,6,8,7,6,0,7,4,2,8,9,3,5,4,3,0,2,2,4,9,8,6,9,9,6
%N A010495 Decimal expansion of square root of 41.
%C A010495 Continued fraction expansion is 6 followed by {2, 2, 12} repeated. - _Harry J. Smith_, Jun 05 2009
%H A010495 Harry J. Smith, <a href="/A010495/b010495.txt">Table of n, a(n) for n = 1..20000</a>
%H A010495 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>.
%e A010495 6.403124237432848686488217674621813264520420132621018885529272626668182... - _Harry J. Smith_, Jun 05 2009
%t A010495 RealDigits[N[Sqrt[41], 100]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 24 2011 *)
%o A010495 (PARI) { default(realprecision, 20080); x=sqrt(41); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010495.txt", n, " ", d)); } \\ _Harry J. Smith_, Jun 05 2009
%Y A010495 Cf. A010133 (continued fraction). - _Harry J. Smith_, Jun 05 2009
%K A010495 nonn,cons,easy
%O A010495 1,1
%A A010495 _N. J. A. Sloane_