A395044 Numbers k such that the greatest prime dividing arithmetic derivative of k is larger than the greatest prime dividing k.

6, 8, 10, 18, 22, 24, 30, 32, 34, 36, 40, 42, 45, 48, 56, 58, 60, 63, 64, 66, 70, 72, 75, 78, 80, 82, 84, 90, 96, 98, 100, 104, 105, 110, 114, 117, 118, 120, 126, 128, 130, 132, 136, 140, 142, 147, 150, 152, 153, 154, 162, 165, 168, 170, 171, 174, 175, 176, 180, 182, 184, 192, 195, 198, 200, 202, 204, 210, 214, 216

Offset

1,1

Links

Antti Karttunen, Table of n, a(n) for n = 1..10000

Formula

{k>1 such that A395042(k) > A006530(k)}.

Prog

(PARI) is_A395044 = A395043;

Crossrefs

Cf. A003415, A395042, A395043 (characteristic function), A395045 (complement \ {1}).

Cf. also A395054.

Sequence in context: A165583 A229965 A165473 * A315854 A210571 A374052

Adjacent sequences: A395041 A395042 A395043 * A395045 A395047 A395048

Keyword

nonn,easy

Author

Antti Karttunen, Apr 15 2026

Status

approved