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A171622
Floor(n-th noncomposite / n).
1
1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4
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OFFSET
1,8
COMMENTS
a(n)= floor(
A008578
(n)/
A000027
(n)) = floor(
A008578
(n)/n). Numerators of (
A008578
(n)/
A000027
(n)) in
A171525
(n), denominators of (
A008578
(n)/
A000027
(n)) in
A171526
(n).
LINKS
Table of n, a(n) for n=1..50.
MATHEMATICA
nn=100; With[{ncs=Join[{1}, Prime[Range[nn]]]}, Floor[#[[1]]/#[[2]]]&/@ Thread[ {ncs, Range[nn+1]}]] (*
Harvey P. Dale
, Feb 19 2013 *)
CROSSREFS
Sequence in context:
A230261
A242306
A245636
*
A351846
A111858
A111856
Adjacent sequences:
A171619
A171620
A171621
*
A171623
A171624
A171625
KEYWORD
nonn
AUTHOR
Jaroslav Krizek
, Dec 13 2009
STATUS
approved
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Last modified August 25 15:39 EDT 2024. Contains 375439 sequences. (Running on oeis4.)