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%I #6 Jan 21 2019 19:01:55
%S 2,23,233,2333,23333
%N a(n) = smallest n-digit prime formed by appending a digit to a(n-1); a(1) = 2.
%C This sequence is finite because there is no prime a(6) since 233331,233333,233337,233339 are not prime.
%C 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]
%e a(1)=2
%e a(2)=23
%e a(3)=233
%e a(4)=2333
%e a(5)=23333
%K fini,nonn,base,full
%O 1,1
%A _Jorge Coveiro_, Jan 10 2005
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