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A255976
Primes that are the concatenation of two 3-digit primes.
1
101107, 101113, 101149, 101173, 101197, 101281, 101293, 101347, 101359, 101383, 101419, 101449, 101467, 101503, 101599, 101641, 101653, 101701, 101719, 101797, 101839, 101863, 101929, 101977, 103307, 103349, 103409, 103421, 103457, 103577, 103613
OFFSET
1,1
COMMENTS
The last term is a(2753)=997991.
MATHEMATICA
Select[1000 First@ # + Last@ # & /@ Permutations[Select[Range[100, 999], PrimeQ], {2}], PrimeQ] (* Michael De Vlieger, Mar 13 2015 *)
CROSSREFS
A168529 is a subsequence.
Subsequence of A105184.
Sequence in context: A210888 A115828 A168529 * A161796 A096929 A031678
KEYWORD
base,fini,full,nonn
AUTHOR
Zak Seidov, Mar 12 2015
STATUS
approved