A373847 - OEIS

%I #5 Jun 20 2024 16:25:57

%S 1,2,3,4,5,6,8,9,10,12,14,15,16,18,20,22,24,25,26,27,30,32,36,40,42,

%T 45,48,50,54,56,60,63,64,70,72,74,75,80,81,84,88,90,96,98,100,105,108,

%U 110,112,120,125,126,128,132,135,140,144,147,150,154,160,162,165,168,175,176,180,182,189,192,196,198,200,210

%N Numbers k for which A373842(k) <= k, where A373842 is the arithmetic derivative of the primorial base log-function.

%o (PARI) isA373847(n) = (A373842(n)<=n);

%Y Cf. A373842.

%Y Subsequences: A373846, A373848.

%K nonn

%O 1,2

%A _Antti Karttunen_, Jun 20 2024