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%I #13 Dec 09 2014 03:33:21
%S 2,3,5,7,11,13,17,19,29,31,41,43,47,59,61,67,71,79,83,89,97,101,103,
%T 107,109,127,131,139,149,151,157,163,167,179,181,191,199,227,239,251,
%U 257,263,269,277,281,307,349,401,409,419,421,431,439,443,449,457,461
%N Primes which are not the concatenation of two primes.
%C 223 is the first term in A141409 which is not in this sequence.
%C In this sequence, a prime preceded by one or more zeros is not considered to be a prime.
%e 59 is in the sequence because 5 is prime but 9 is not prime.
%e 223 is not in the sequence because both 2 and 23 are primes.
%Y Cf. A141409, A105184 (complement), A238056, A238057, A238499.
%K nonn,base
%O 1,1
%A _Colin Barker_, Mar 02 2014
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