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 A010504 #26 Jun 08 2025 07:25:50
%S A010504 7,1,4,1,4,2,8,4,2,8,5,4,2,8,4,9,9,9,7,9,9,9,3,9,9,8,1,1,3,6,7,2,6,5,
%T A010504 2,7,8,7,6,6,1,7,1,1,5,9,9,0,2,7,3,3,8,3,3,2,0,8,4,3,0,8,8,2,7,6,5,8,
%U A010504 2,0,4,0,6,4,4,0,0,2,1,8,8,6,2,5,8,9,8,8,2,1,3,5,3,2,8,2,0,4,1
%N A010504 Decimal expansion of square root of 51.
%C A010504 Continued fraction expansion is 7 followed by {7, 14} repeated. - _Harry J. Smith_, Jun 06 2009
%H A010504 Harry J. Smith, <a href="/A010504/b010504.txt">Table of n, a(n) for n = 1..20000</a>
%H A010504 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>.
%F A010504 Equals A002194*A010473. - _R. J. Mathar_, Jun 08 2025
%e A010504 7.141428428542849997999399811367265278766171159902733833208430882765820...
%p A010504 Digits:=100; evalf(sqrt(51)); # _Wesley Ivan Hurt_, Mar 04 2014
%t A010504 RealDigits[N[Sqrt[51],200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 24 2011 *)
%o A010504 (PARI) { default(realprecision, 20080); x=sqrt(51); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010504.txt", n, " ", d)); } \\ _Harry J. Smith_, Jun 06 2009
%Y A010504 Cf. A040043 (continued fraction).
%K A010504 nonn,cons
%O A010504 1,1
%A A010504 _N. J. A. Sloane_