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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A093164 Primes of the form 50*R_n + 3, where R_n is the repunit (A002275) of length n. 1
3, 53, 55555553, 55555555555555555555555553, 555555555555555555555555555555555555555555555555555555555555555553, 55555555555555555555555555555555555555555555555555555555555555555555555553 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Primes of the form (5*10^n-23)/9 [From Vincenzo Librandi, Nov 16 2010]

CROSSREFS

Cf. A056685 (corresponding n).

Sequence in context: A118194 A173357 A144537 * A092448 A045481 A174782

Adjacent sequences:  A093161 A093162 A093163 * A093165 A093166 A093167

KEYWORD

nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 26 2004

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 14:47 EST 2012. Contains 205623 sequences.