login
Numbers k for which A003415(k) > k*A003557(k).
1

%I #7 Jul 19 2021 18:30:51

%S 30,210,330,390,462,510,546,570,690,714,798,858,870,930,966,1110,1218,

%T 1230,1290,1302,1410,1554,1590,1722,1770,1830,2010,2130,2190,2310,

%U 2370,2490,2670,2730,2910,3030,3090,3210,3270,3390,3570,3810,3930,3990,4110,4170,4290,4470,4530,4710,4830,4890,5010,5190,5370,5430

%N Numbers k for which A003415(k) > k*A003557(k).

%C Numbers k such that A342001(k) > k.

%C Numbers k such that their arithmetic derivative (A003415(k)) is larger than A102631(k), k^2 / (squarefree kernel of k).

%Y Positions of negative terms in A346244.

%Y Cf. A003415, A003557, A102631, A342001.

%Y Seems to have many common terms with A181629, A265501 and A286652.

%K nonn

%O 1,1

%A _Antti Karttunen_, Jul 19 2021