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Numbers n for which n*A276086(n) is a term of A055932.
3

%I #6 Mar 09 2019 19:23:38

%S 1,2,3,4,5,6,8,9,10,12,14,15,16,18,20,21,24,27,28,30,35,36,40,42,44,

%T 45,48,50,54,56,60,66,70,72,75,77,80,81,84,88,90,96,98,99,100,105,108,

%U 110,112,120,125,126,128,132,135,140,143,144,147,150,160,162,165,168,176,180,189,192,196,198,200,210,224,231,240,245,250,252,256

%N Numbers n for which n*A276086(n) is a term of A055932.

%H Antti Karttunen, <a href="/A324578/b324578.txt">Table of n, a(n) for n = 1..10000</a>

%H <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>

%H <a href="/index/Pri#primorial_numbers">Index entries for sequences related to primorial numbers</a>

%o (PARI)

%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 A324580(n) = n*A276086(n);

%o isA055932(n) = if(1==n,1,my(f=factor(n)); (primepi(f[#f~,1]) == #f~));

%o isA324578(n) = isA055932(A324580(n));

%Y Cf. A002110, A055932, A276086, A324579 (a subsequence), A324580.

%K nonn

%O 1,2

%A _Antti Karttunen_, Mar 09 2019