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 A328119 #5 Oct 08 2019 16:27:00 %S A328119 0,1,2,3,4,5,9,10,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28, %T A328119 29,41,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,69,70,71,73,74, %U A328119 75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,94,95,97,98,99,100,101,102,103,104,105,106,107,108,109,110 %N A328119 Numbers n for which A276086(n) > A002620(n). %H A328119 Antti Karttunen, <a href="/A328119/b328119.txt">Table of n, a(n) for n = 1..10000</a> %o A328119 (PARI) %o A328119 A002620(n) = ((n^2)>>2); %o A328119 A276086(n) = { my(i=0,m=1,pr=1,nextpr); while((n>0),i=i+1; nextpr = prime(i)*pr; if((n%nextpr),m*=(prime(i)^((n%nextpr)/pr));n-=(n%nextpr));pr=nextpr); m; }; %o A328119 isA328119(n) = (A276086(n) > A002620(n)); %Y A328119 Cf. A002620, A276086. %Y A328119 Cf. A328118 (complement). %K A328119 nonn %O A328119 1,3 %A A328119 _Antti Karttunen_, Oct 08 2019