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 A048650 #15 Aug 03 2024 13:24:49
%S A048650 1,2,2,9,1,3,5,1,2,1,1,1,1,8,2,1,1,2,1,12,19,24,1,18,12,1,2,1,1,2,2,1,
%T A048650 1,1,1,2,1,8,1,1,5,2,5,8,1,4,2,5,1,1,8,1,2,1,1,1,1,2,2,1,1,2,1,12,18,
%U A048650 1,7,2,1,1,2,4,1,5,4,2,1,1,1,1,1,4,64,14,1,6,3,1,6
%N A048650 Continued fraction for Sum_{m>=0} 1/(2^2^m - 1).
%H A048650 Harry J. Smith, <a href="/A048650/b048650.txt">Table of n, a(n) for n = 0..19999</a>
%H A048650 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">Contfrac</a>
%H A048650 <a href="/index/Con#confC">Index entries for continued fractions for constants</a>
%e A048650 1.40393682788217832057620607413720935453...
%e A048650 1.403936827882178320576206074... = 1 + 1/(2 + 1/(2 + 1/(9 + 1/(1 + ...)))). - _Harry J. Smith_, May 03 2009
%o A048650 (PARI) { allocatemem(932245000); default(realprecision, 21000); x=suminf(m=0, 1/(2^2^m - 1)); x=contfrac(x); for (n=1, 20000, write("b048650.txt", n-1, " ", x[n])); } \\ _Harry J. Smith_, May 07 2009
%Y A048650 Cf. A048164, A048649 (decimal expansion).
%K A048650 nonn,cofr
%O A048650 0,2
%A A048650 _N. J. A. Sloane_
%E A048650 Deleted old PARI program. - _Harry J. Smith_, May 20 2009
%E A048650 Offset changed by _Andrew Howroyd_, Aug 03 2024