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A371083
Nonsquarefree numbers that are not divisible by p^p for any prime p.
3
9, 18, 25, 45, 49, 50, 63, 75, 90, 98, 99, 117, 121, 125, 126, 147, 150, 153, 169, 171, 175, 198, 207, 225, 234, 242, 245, 250, 261, 275, 279, 289, 294, 306, 315, 325, 333, 338, 342, 343, 350, 361, 363, 369, 375, 387, 414, 423, 425, 441, 450, 475, 477, 490, 495, 507, 522, 525, 529, 531, 539, 549, 550, 558, 575, 578
OFFSET
1,1
COMMENTS
The asymptotic density of this sequence is Product_{p prime} (1 - 1/p^p) - 6/Pi^2 = 0.1140631325... . - Amiram Eldar, Mar 12 2024
LINKS
PROG
(PARI) \\ See A371083.
CROSSREFS
Intersection of A013929 and A048103.
Cf. A371084 (characteristic function), A371085 (subsequence), A059956.
Sequence in context: A069562 A072502 A195268 * A328252 A227279 A102042
KEYWORD
nonn
AUTHOR
Antti Karttunen, Mar 12 2024
STATUS
approved