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%I #9 Jun 15 2013 14:52:52
%S 3,14,14,4578,367434,367434,6844073124,35143773390
%N First positional base with the first n of {21, 321, 4321,...} prime.
%C The 5th/6th term may be considered as II0I in base 27, analogizing with the hexadecimal system. The 4th term is 2112 in base 13, (42)(42) in base 103, and AI in base 456. (In base-ten terms.)
%K nonn,base
%O 1,1
%A _James G. Merickel_, Dec 14 2009
%E Seventh term added by _James G. Merickel_, Feb 03 2010
%E Eighth term added by _James G. Merickel_, Feb 12 2010