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A076881 pi(n) - floor(n / ln(n)), where pi(n) = the number of primes <= n. 0
-1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 2, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 2, 2, 3, 3, 4, 3, 3, 3, 3, 3, 4, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 4, 4, 4, 4, 5, 4, 4, 4, 4, 4, 4, 3, 4, 4, 4, 4 (list; graph; refs; listen; history; internal format)
OFFSET

2,18

MATHEMATICA

Table[PrimePi[i] - Floor[i/Log[i]], {i, 2, 100}]

CROSSREFS

Sequence in context: A125829 A077099 A160385 * A136754 A026498 A140685

Adjacent sequences:  A076878 A076879 A076880 * A076882 A076883 A076884

KEYWORD

sign

AUTHOR

Joseph L. Pe (joseph_l)pe(AT)hotmail.com), Nov 25 2002

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Last modified February 17 04:58 EST 2012. Contains 205985 sequences.