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 A228270 #18 Feb 16 2025 08:33:20
%S A228270 4,0,1,11,18,7,44,159,74,212,260,182,43,152,59,84,40,186,27,89,927,38,
%T A228270 20,83,277,17,101,65,194,2244,492,779,88,632,411,634,1090,1624,177,
%U A228270 228,2358,1720,1502,2809,2933,897,1452,6833,5467,1860,126,1010,1908,1789
%N A228270 First position of n in the continued fraction of log(10).
%C A228270 Smallest positive integers not appearing in the first 9702786891 terms of the c.f. are 40230, 45952, 46178, 46530, ... - _Eric W. Weisstein_, Aug 28 2013
%H A228270 Eric W. Weisstein, <a href="/A228270/a228270_1.txt">Table of n, a(n) for n = 1.. 40229</a>
%H A228270 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/NaturalLogarithmof10ContinuedFraction.html">Natural Logarithm of 10 Continued Fraction</a>
%t A228270 Flatten[With[{cf=ContinuedFraction[Log[10],7000]},Table[SequencePosition[cf,{n},1][[All,1]],{n,60}]]]-1 (* _Harvey P. Dale_, Oct 09 2022 *)
%Y A228270 Cf. A016738 (continued fraction of log(10)).
%K A228270 nonn
%O A228270 1,1
%A A228270 _Eric W. Weisstein_, Aug 19 2013