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Chris Caldwell The First 1,008 Twin Primes.
3557 is obtained by concatenating the consecutive pair of twin primes (3,5) and (5,7).
11131719 is obtained by concatenating the consecutive pair of twin primes (11,13) and (17,19).
Sequence in context: A108003 A020412 A083955 this_sequence A107646 A071144 A004932
Adjacent sequences: A104204 A104205 A104206 this_sequence A104208 A104209 A104210
nonn,base
Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 01 2005
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