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!)
A068161 Smallest prime beginning and ending in at least n 3's. 2
3, 33533, 3331333, 3333133333, 333331033333, 33333362333333, 333333313333333, 333333332933333333, 33333333316333333333, 3333333333133333333333, 33333333333733333333333 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
a(2) = 33533 is a prime that starts with 33 and ends in 33 (two 3's).
CROSSREFS
Cf. A068160.
Sequence in context: A175875 A030463 A086509 * A116313 A140656 A135760
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Feb 24 2002
EXTENSIONS
Corrected and extended by Robert Gerbicz, Sep 06 2002
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 March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)