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 A048613 #39 Jul 16 2024 15:57:43
%S A048613 1,2,3,15,23,26,81,104,109,111,120,127,135,136,141,142,144,145,146,
%T A048613 147,148,5920,5943,8381,8401,89953,91368,267848,353014
%N A048613 Number of terms (excluding the first) of A002211 for which the geometric mean produces progressively better approximations to Khinchin's constant (itself).
%C A048613 a(30) > 969679. - _Hans Havermann_, Jul 14 2024
%H A048613 Hans Havermann, <a href="http://chesswanks.com/pxp/cfk.html">Simple Continued Fraction Expansion of Khinchin's Constant</a>.
%H A048613 Marek Wolf, <a href="http://arxiv.org/abs/1112.2412">Computer experiments with Mersenne primes</a>, arXiv preprint arXiv:1112.2412 [math.NT], 2011.
%t A048613 cf=Rest[ContinuedFraction[Khinchin,200]];r=2;p=N[1,50];Do[p=p*cf[[i]];m=Abs[p^(1/i)-Khinchin];If[m<r,Print[i];r=m],{i,Length[cf]}] (* _Hans Havermann_, Jul 16 2024 *)
%Y A048613 Cf. A002211, A209600.
%K A048613 nice,nonn,more
%O A048613 1,2
%A A048613 _Hans Havermann_
%E A048613 a(28)-a(29) from _Hans Havermann_, Jul 14 2024