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%I #3 Oct 01 2013 17:57:41
%S 3,5,35,3511,351117,35111729,3511172941,351117294159,35111729415971,
%T 35111729415971101,35111729415971101107,35111729415971101107137,
%U 35111729415971101107137149,35111729415971101107137149179
%N Concatenation of the smaller members of first n pairs of twin primes.
%o (PARI) concattwprl(n) = { y=3; print1(3","5","); forprime(x=5,n, if(isprime(x+2), y=eval(concat(Str(y),Str(x))); print1(y",") ) ) }
%K nonn,base
%O 2,1
%A _Cino Hilliard_, Sep 08 2003