login
A356318
Numbers k such that the least j >= k for which k and A276086(j) are coprime is a nontrivial multiple of k, where A276086 is the primorial base exp-function.
4
3, 10, 15, 35, 42, 70, 77, 105, 154, 231, 286, 330, 385, 429, 462, 715, 770, 858, 1001, 1155, 1430, 2002, 2145, 2431, 2730, 3003, 3094, 3315, 4199, 4290, 4641, 4862, 5005, 6006, 6630, 7293, 7735, 8398, 9282, 10010, 12155, 12597, 14586, 15015, 15470, 17017, 20995, 23205, 24310, 25194, 29393, 33915, 34034, 35530, 36465
OFFSET
1,1
COMMENTS
Numbers k such that k divides A356309(k) and A356309(k) > k.
Numbers k for which A356302(k) is a nonzero multiple of k.
PROG
(PARI) isA356318(n) = { my(u=A356302(n)); (u && !(u%n)); }; \\ Needs also code from A356302.
CROSSREFS
Setwise difference A356316 \ A324583. Intersection of A324584 and A356316.
Sequence in context: A192163 A129307 A186575 * A233312 A330940 A351010
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 04 2022
STATUS
approved