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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A171519 a(n) = numbers m such that are not the product of k-th noncomposite number and k for any k >= 1. 1
2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of set {A(noncomposite number(n)*n)} = {A164931(n)} = {A(A008578(n)*A000027(n))}.

LINKS

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

CROSSREFS

Sequence in context: A028729 A213367 A175084 * A072099 A046841 A244218

Adjacent sequences:  A171516 A171517 A171518 * A171520 A171521 A171522

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Dec 11 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 17 14:25 EDT 2018. Contains 316281 sequences. (Running on oeis4.)