login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A175195 a(0)=1. For n >=1, a(n) = the smallest positive multiple of a(n-1) such that (the n-th prime)+a(n) is prime. 1
1, 1, 2, 2, 4, 8, 16, 80, 160, 480, 480, 960, 960, 3840, 7680, 7680, 15360, 92160, 92160, 92160, 460800, 1843200, 3686400, 3686400, 55296000, 940032000, 1880064000, 37601280000, 37601280000, 75202560000, 75202560000, 75202560000 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
For n>=1, the n-th prime + a(n) = A175196(n).
LINKS
CROSSREFS
Cf. A175196.
Sequence in context: A122748 A108774 A063402 * A369289 A139800 A168058
KEYWORD
nonn
AUTHOR
Leroy Quet, Mar 01 2010
EXTENSIONS
Extended by Ray Chandler, Mar 04 2010
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 18 13:57 EDT 2024. Contains 374378 sequences. (Running on oeis4.)