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 A010516 #15 Feb 10 2025 08:36:11
%S A010516 7,9,3,7,2,5,3,9,3,3,1,9,3,7,7,1,7,7,1,5,0,4,8,4,7,2,6,0,9,1,7,7,8,1,
%T A010516 2,7,7,1,3,0,7,7,7,5,4,9,2,4,7,3,5,0,5,4,1,1,0,5,0,0,3,3,7,7,6,0,3,2,
%U A010516 0,6,4,6,9,6,9,0,8,5,0,8,8,3,2,8,1,1,7,8,6,5,9,4,2,3,6,3,0,8,3
%N A010516 Decimal expansion of square root of 63.
%C A010516 Continued fraction expansion is 7 followed by {1, 14} repeated. - _Harry J. Smith_, Jun 07 2009
%H A010516 Harry J. Smith, <a href="/A010516/b010516.txt">Table of n, a(n) for n = 1..20000</a>
%H A010516 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>.
%e A010516 7.937253933193771771504847260917781277130777549247350541105003377603206... - _Harry J. Smith_, Jun 07 2009
%t A010516 RealDigits[N[63^(1/2),200]][[1]] (* _Vladimir Joseph Stephan Orlovsky_, Jan 22 2012 *)
%o A010516 (PARI) { default(realprecision, 20080); x=sqrt(63); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010516.txt", n, " ", d)); } \\ _Harry J. Smith_, Jun 07 2009
%Y A010516 Cf. A040055 (continued fraction).
%K A010516 nonn,cons
%O A010516 1,1
%A A010516 _N. J. A. Sloane_