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A086688 Number of primes < prime(n)^3. 1
4, 9, 30, 68, 217, 327, 656, 882, 1457, 2707, 3228, 5194, 6850, 7789, 9916, 13746, 18411, 20179, 26062, 30597, 32984, 40991, 46959, 56924, 72217, 80725, 85182, 94695, 99669, 110127, 152280, 165951, 187910, 195660, 237427, 246434, 274614 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = A038098(prime(n)). - R. J. Mathar, Sep 15 2012
a(n) = A000720(A030078(n)). - Michel Marcus, Sep 18 2023
PROG
(PARI) a(n) = primepi(prime(n)^3); \\ Michel Marcus, Sep 18 2023
CROSSREFS
Sequence in context: A091658 A297960 A295910 * A309295 A151270 A149113
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, Jul 28 2003
STATUS
approved

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Last modified August 21 18:06 EDT 2024. Contains 375353 sequences. (Running on oeis4.)