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A368917
Numbers k for which there is no prime p such that p^p divides the arithmetic derivative of A276086(k), where A276086 is the primorial base exp-function.
4
1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 93
OFFSET
1,2
COMMENTS
Numbers k such that A327860(k) [or equally, A342002(k)] is in A048103.
FORMULA
For n >= 1, A368918(a(n)) = n.
PROG
(PARI) \\ See A368916.
CROSSREFS
Complement of A342018.
Cf. A003415, A048103, A276086, A341996, A327860, A342002, A342019, A359550, A368915, A368916 (characteristic function), A368918 (its partial sums).
Cf. A328116 (subsequence, after its initial zero).
Sequence in context: A361395 A329135 A182768 * A207481 A047592 A187320
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 09 2024
STATUS
approved