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 A024587 #14 Apr 20 2025 09:38:53
%S A024587 1,7,49,346,2444,17261,121906,860963,6080563,42944057,303292974,
%T A024587 2142010664,15127978816,106841551680,754569880366,5329159820340,
%U A024587 37637262140584,265813664666689
%N A024587 Integer nearest a(n-1)/(Pi - 3), where a(0) = 1.
%H A024587 Clark Kimberling, <a href="/A024587/b024587.txt">Table of n, a(n) for n = 0..250</a>
%t A024587 a[0] = 1; a[n_] := Round[a[n - 1]/FractionalPart[Pi]]; Table[a[n], {n, 0, 30}] (* _Clark Kimberling_, Aug 18 2012 *)
%t A024587 NestList[Round[#/(Pi-3)]&,1,20] (* _Harvey P. Dale_, Apr 20 2025 *)
%Y A024587 Cf. A133928.
%K A024587 nonn
%O A024587 0,2
%A A024587 _Clark Kimberling_