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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A062577 Numbers n such that k^n - (k-1)^n is prime, where k is 11. 0
3, 5, 19, 311, 317, 1129, 4253, 7699, 18199, 35153, 206081 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Terms > 1000 are often only strong pseudo-primes.

LINKS

Table of n, a(n) for n=1..11.

Top probable primes of the form 11^p-10^p

CROSSREFS

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Sequence in context: A077458 A201108 A172058 * A144743 A171862 A076149

Adjacent sequences:  A062574 A062575 A062576 * A062578 A062579 A062580

KEYWORD

nonn,hard

AUTHOR

Mike Oakes (Mikeoakes2(AT)aol.com), May 18 2001, May 19 2001

EXTENSIONS

Two more terms 18199 and 35153 found by Jean-Louis Charton corresponding to probable primes with 18953 and 36609 digits. Jean-Louis Charton, Sep 02 2009

New term 206081 found by Jean-Louis Charton in October 2011 corresponding to a probable prime with 214612 digits

STATUS

approved

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 June 19 16:47 EDT 2013. Contains 226415 sequences.