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A135113 Integers k such that 10^k + 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 k, if it exists, is > 100000. - 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 term: 10^4 + 67 = 10000 + 67 = 10067, which is a prime number.

CROSSREFS

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

Sequence in context: A261562 A102930 A357996 * A050564 A047830 A036051

Adjacent sequences: A135110 A135111 A135112 * A135114 A135115 A135116

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

Term 11930 from Robert Price, Mar 22 2010

Terms 1942, 3694, 6926, 8582, 16076, 16276, 22820 from Robert Price, Sep 04 2010

Edited by Ray Chandler, Dec 23 2010

STATUS

approved

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Last modified December 7 09:17 EST 2022. Contains 358654 sequences. (Running on oeis4.)