OFFSET
1,1
COMMENTS
This sequence is finite because there is no prime a(6) since 233331,233333,233337,233339 are not prime.
This is an initial subsequence of A048549, A065122, A088603, and A127889; and for any b, the base b analog of this sequence is an initial subsequence of the base b analog of each of these three sequences. [From Franklin T. Adams-Watters, Jun 27 2009]
EXAMPLE
a(1)=2
a(2)=23
a(3)=233
a(4)=2333
a(5)=23333
CROSSREFS
KEYWORD
fini,nonn,base,full
AUTHOR
Jorge Coveiro, Jan 10 2005
STATUS
approved