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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A135113 Integers n such that 10^n+67 is a prime number. 1
2, 4, 14, 26, 36, 60, 150, 410, 484, 972, 1942, 3694, 6926, 8582, 11930, 16076, 16276, 22820 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next n, if it exists, is >100000. [From Robert Price, Apr 25 2011]

See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10067".

LINKS

Table of n, a(n) for n=1..18.

Makoto Kamada, List of near-repdigit-related prime numbers.

Index entries for primes involving repunits.

EXAMPLE

4 is a member: 10^4+67 = 10000+67 = 10067, which is a prime number.

CROSSREFS

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.

Sequence in context: A096012 A261562 A102930 * A050564 A047830 A036051

Adjacent sequences:  A135110 A135111 A135112 * A135114 A135115 A135116

KEYWORD

more,nonn

AUTHOR

Julien Peter Benney (jpbenney(AT)gmail.com), Feb 12 2008

EXTENSIONS

Added term 11930. Robert Price, Mar 22 2010

Added terms: 1942,3694,6926,8582,16076,16276,22820. Robert Price, Sep 04 2010

Edited by Ray Chandler, Dec 23 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 | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 5 21:40 EST 2016. Contains 278771 sequences.