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A047745 A discrete analog of Li(n): ceiling ( Sum_{k=2..n} 1/log_2 (k) ). 0
1, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..74.

CROSSREFS

Sequence in context: A101776 A189721 A202304 * A196176 A121536 A080405

Adjacent sequences:  A047742 A047743 A047744 * A047746 A047747 A047748

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified December 7 19:05 EST 2016. Contains 278895 sequences.