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 A097882 #13 Aug 29 2024 21:34:08
%S A097882 0,1,1,2,2,2,2,3,3,3,3,3,4,4,4,4,4,5,5,5,6,6,6,6,6,6,7,7,7,7,7,7,7,8,
%T A097882 8,8,8,8,9,9,9,9,9,10,10,10,10,10,10,10,11,11,11,11,11,11,12,12,12,12,
%U A097882 13,13,12,13,13,13,13,13,13,14,14,14,14,14,14,15,15,15,15,15,15,15,15,16
%N A097882 a(n) = floor( n^2/prime(n) ).
%H A097882 G. C. Greubel, <a href="/A097882/b097882.txt">Table of n, a(n) for n = 1..1000</a>
%F A097882 a(n) = floor(A000290(n)/A000040(n)).
%F A097882 A000290(n) = a(n)*A000040(n) + A069547(n).
%t A097882 Table[Floor[n^2/Prime[n]], {n,1,50}] (* _G. C. Greubel_, May 21 2017 *)
%o A097882 (PARI) for(n=1,50, print1(floor(n^2/prime(n)), ", ")) \\ _G. C. Greubel_, May 21 2017
%Y A097882 Cf. A000040, A000290, A001221, A069547.
%K A097882 nonn,easy
%O A097882 1,4
%A A097882 _Reinhard Zumkeller_, Sep 02 2004