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 A065564 #14 Dec 09 2024 22:03:55
%S A065564 4,13,18,20,21,23,24,34,44,45,49,56,60,63,65,66,67,79,81,83,85,88,94,
%T A065564 102,107,109,119,125,126,129,131,132,133,135,138,139,144,161,162,164,
%U A065564 172,174,175,190,194,199,204,217,218,233,234,240,249,250,253,255,258
%N A065564 Numbers k such that floor((4/3)^(k+1))/floor((4/3)^k) = 4/3.
%H A065564 Harry J. Smith, <a href="/A065564/b065564.txt">Table of n, a(n) for n = 1..1000</a>
%F A065564 Lim_{n->infinity} a(n)/n = 4?
%o A065564 (PARI) isok(k) = { my(f=4/3); floor(f^(k + 1))/floor(f^k) == f } \\ _Harry J. Smith_, Oct 22 2009
%Y A065564 Cf. A064628, A065554.
%K A065564 nonn
%O A065564 1,1
%A A065564 _Benoit Cloitre_, Nov 30 2001
%E A065564 a(55)-a(57) corrected by _Harry J. Smith_, Oct 22 2009