

A135116


Integers n such that 10^n+61 is a prime number.


1



1, 3, 4, 10, 12, 16, 33, 696, 739, 1764, 2577, 3198, 4242, 11104, 18081, 19587, 20799, 22986, 92178
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OFFSET

1,2


COMMENTS

The next term, if one exists is >100000. [From Robert Price, Jul 14 2010]
See Kamada link  primecount.txt for terms, primesize.txt for discovery details including probable or proved primes  search on "10061".


LINKS

Table of n, a(n) for n=1..19.
Makoto Kamada, List of nearrepdigitrelated prime numbers.
Index entries for primes involving repunits.


EXAMPLE

4 is a member because 10^4+61 = 10000+61 = 10061, which is a prime number.


CROSSREFS

Cf. A095688, A108052, A108050, A108312, A107083, A108049, A108054.
Sequence in context: A242881 A287448 A325235 * A259559 A050187 A101506
Adjacent sequences: A135113 A135114 A135115 * A135117 A135118 A135119


KEYWORD

more,nonn


AUTHOR

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


EXTENSIONS

Added term 11104. Robert Price, Mar 22 2010
Added terms: 1764,2577,3198,4242,18081,19587,20799,22986. Robert Price, Jul 14 2010
Edited by Ray Chandler, Dec 23 2010
a(19)=92178 by Robert Price, Apr 19 2011


STATUS

approved



