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Numbers n for which A276086(n) > A002620(n).
2

%I #5 Oct 08 2019 16:27:00

%S 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 29,41,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,69,70,71,73,74,

%U 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 Numbers n for which A276086(n) > A002620(n).

%H Antti Karttunen, <a href="/A328119/b328119.txt">Table of n, a(n) for n = 1..10000</a>

%o (PARI)

%o A002620(n) = ((n^2)>>2);

%o 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 isA328119(n) = (A276086(n) > A002620(n));

%Y Cf. A002620, A276086.

%Y Cf. A328118 (complement).

%K nonn

%O 1,3

%A _Antti Karttunen_, Oct 08 2019