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 A018939 #29 Aug 08 2024 13:58:57 %S A018939 19,1,1110,11,1,2,2,2,2,1,61,3,2083,1,2,1,2,3,1,2,9,2,28,1,3,2,2,10,3, %T A018939 1,3,1,1,1,4,14,1,2,2,1,1,20,2,12,1,25,1,37,1,18,1,1,1,1,6,2,1,1,150, %U A018939 1,2,11,1,8,1,1,11,3,19,7,1,3,7,1,151,1,4,1,12,8,1,1,182,1,12,3,7,1,22,2 %N A018939 Continued fraction for e^Pi - Pi. %H A018939 Harry J. Smith, <a href="/A018939/b018939.txt">Table of n, a(n) for n = 0..19999</a> %H A018939 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">Contfrac</a> %H A018939 <a href="/index/Con#confC">Index entries for continued fractions for constants</a> %e A018939 19.9990999791894757672664429846690444960689368432251061724701018172... %e A018939 19.999099979189475767266... = 19 + 1/(1 + 1/(1110 + 1/(11 + 1/(1 + ...)))). - _Harry J. Smith_, May 14 2009 %t A018939 ContinuedFraction[E^Pi-Pi,90] (* _Harvey P. Dale_, Dec 17 2011 *) %o A018939 (PARI) contfrac(exp(1)^Pi-Pi) %o A018939 (PARI) { allocatemem(932245000); default(realprecision, 21000); x=contfrac(exp(1)^Pi-Pi); for (n=1, 20000, write("b018939.txt", n-1, " ", x[n])); } \\ _Harry J. Smith_, May 14 2009 %Y A018939 Cf. A018938 (decimal expansion). %K A018939 nonn,cofr %O A018939 0,1 %A A018939 _N. J. A. Sloane_ %E A018939 More terms from _Jason Earls_, Jul 24 2001 %E A018939 Offset changed by _Andrew Howroyd_, Aug 07 2024