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 A063447 #23 Aug 04 2024 11:41:20
%S A063447 4,2,3,1,7,7,1,3,1,1,1,1,4,10,8,1,2,3,3,2,5,8,6,14,1,9,1,1,1,2,6,2,2,
%T A063447 4,3,2,2,6,1,12,1,35,32,1,3,5,15,1,2,1,6,1,2,1,1,2,16,6,1,7,1,2,2,1,2,
%U A063447 1,1,27,3,6,4,26,2,1,31,2,1,1,12,1,1,2,2,1,24,5,2,591,6,33,1,8,1,2,6,2
%N A063447 Continued fraction for Pi * sqrt(2).
%H A063447 Harry J. Smith, <a href="/A063447/b063447.txt">Table of n, a(n) for n = 0..19999</a>
%e A063447 4.442882938158366247015880990... = 4 + 1/(2 + 1/(3 + 1/(1 + 1/(7 + ...))))
%t A063447 ContinuedFraction[Pi*Sqrt[2],300] (* _Vladimir Joseph Stephan Orlovsky_, Mar 21 2011*)
%o A063447 (PARI) contfrac(Pi*sqrt(2))
%o A063447 (PARI) allocatemem(932245000); default(realprecision, 21000); x=contfrac(Pi*sqrt(2)); for (n=1, 20000, write("b063447.txt", n-1, " ", x[n])) \\ _Harry J. Smith_, Aug 21 2009
%o A063447 (Magma) SetDefaultRealField(RealField(150)); R:= RealField(); ContinuedFraction(Pi(R)*Sqrt(2)); // _G. C. Greubel_, Aug 16 2018
%Y A063447 Cf. A063448 (decimal expansion).
%K A063447 cofr,easy,nonn
%O A063447 0,1
%A A063447 _Jason Earls_, Jul 24 2001
%E A063447 Offset changed by _Andrew Howroyd_, Aug 04 2024