

A107084


Integers n such that 10^n+33 is prime.


1



1, 3, 6, 9, 10, 31, 47, 70, 281, 366, 519, 532, 775, 1566, 1627, 2247, 2653, 4381, 4571, 7513, 10581, 13239, 15393, 72267
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS

The next term, if it exists, is >39546. [From Robert Price, Aug 21 2010]
See Kamada link  primecount.txt for terms, primesize.txt for discovery details including probable or proved primes  search on "10033".


LINKS

Table of n, a(n) for n=1..24.
Makoto Kamada, List of nearrepdigitrelated prime numbers.
Index entries for primes involving repunits.


EXAMPLE

For n = 3 we get 10^3+33 = 1000+33 = 1033, which is prime.


CROSSREFS

Cf. A049054, A088274, A088275, A095688, A108052, A108050, A108049, A108054.
Sequence in context: A166047 A310141 A223999 * A224353 A224012 A065940
Adjacent sequences: A107081 A107082 A107083 * A107085 A107086 A107087


KEYWORD

more,nonn


AUTHOR

Julien Peter Benney (jpbenney(AT)ftml.net), Jun 08 2005


EXTENSIONS

a(20)a(23) from Robert Price, Aug 21 2010
Edited by Ray Chandler, Dec 23 2010
a(24)=72267 from Robert Price, Jan 29 2011


STATUS

approved



