login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A171526 Denominator of (n-th noncomposite/n). 2
1, 1, 1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Denominator of (A008578(n)/n). a(1) = a(2) = a(3) = 1, a(n) = n for n >= 4.

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

Sequence in context: A030543 A214084 A114143 * A171463 A020705 A081313

Adjacent sequences:  A171523 A171524 A171525 * A171527 A171528 A171529

KEYWORD

nonn,easy

AUTHOR

Jaroslav Krizek, Dec 11 2009

EXTENSIONS

Corrected by Jaroslav Krizek, Dec 16 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 14 01:15 EST 2019. Contains 329977 sequences. (Running on oeis4.)