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Search: id:A138194
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A138194 Floor(2*n/(3*log(n))). +0
3
1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13 (list; graph; listen)
OFFSET

2,4

COMMENT

a(n) <= A000720(n) <= A138195(n), (Tschebyscheff, 1850).

CROSSREFS

Cf. A050500, A050499, A050501.

Sequence in context: A098429 A132090 A071538 this_sequence A133876 A152467 A097992

Adjacent sequences: A138191 A138192 A138193 this_sequence A138195 A138196 A138197

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 04 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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