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A076881
pi(n) - floor(n / log(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
OFFSET
2,18
MATHEMATICA
Table[PrimePi[i] - Floor[i/Log[i]], {i, 2, 100}]
CROSSREFS
Sequence in context: A077099 A276337 A160385 * A355813 A136754 A276788
KEYWORD
sign
AUTHOR
Joseph L. Pe, Nov 25 2002
STATUS
approved