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 A159672 #9 Jul 02 2017 12:23:57 %S A159672 0,1,1,3,4,2,13,2,3,4,1,1,1,1,2,2,1,1,1,1,1,3,1,90,4,52,5,1,3,1,1,2,1, %T A159672 12,2,1,1,2,2,2,1,1,3,10,75,15,1,2,2,3,1,1,2,1,1,1,9,4,9,1,1,1,3,3,1, %U A159672 1,1,2,1,1,1,3,3,1,3,4,2,4,7,1,78,1,1,1,1,1,44,1,2,1,9,37,1,2,1,10,8,1,14 %N A159672 Continued fraction expansion of A038458. %H A159672 Harry J. Smith, <a href="/A159672/b159672.txt">Table of n, a(n) for n = 0..20000</a> %e A159672 0.5671481302020177146468468755... = 0 + 1/(1 + 1/(1 + 1/(3 + 1/(4 + ...)))). %o A159672 (PARI) { allocatemem(932245000); default(realprecision, 21000); x=contfrac(solve(x=.5,.6,127^x-113^x-1)); for (n=0, 20000, write("b159672.txt", n, " ", x[n+1])); } %K A159672 nonn %O A159672 0,4 %A A159672 _Harry J. Smith_, Apr 19 2009 %E A159672 Edited by _N. J. A. Sloane_, Dec 16 2013