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Search: id:A105184
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| A105184 |
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Primes that can be written as concatenation of two primes in decimal representation. |
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+0
8
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| 23, 37, 53, 73, 113, 137, 173, 193, 197, 211, 223, 229, 233, 241, 271, 283, 293, 311, 313, 317, 331, 337, 347, 353, 359, 367, 373, 379, 383, 389, 397, 433, 523, 541, 547, 571, 593, 613, 617, 673, 677, 719, 733, 743, 761, 773, 797, 977, 1013, 1033, 1093
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Primes that can be written as the concatenation of two distinct primes is the same sequence.
Subsequence of A019549.
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EXAMPLE
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A000040(105) = 571 = 5*100+71 = A000040(3)*100+A000040(20), therefore 571 is a term: a(36) = 571;
A000040(108) = 593 = 59*10+3 = A000040(17)*10+A000040(2), therefore 593 is a term: a(37) = 593.
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CROSSREFS
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Cf. A121608, A121609, A121610, A019549, A083427.
Sequence in context: A057878 A019549 A129800 this_sequence A066064 A163759 A092622
Adjacent sequences: A105181 A105182 A105183 this_sequence A105185 A105186 A105187
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KEYWORD
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nonn,base
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AUTHOR
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Lekraj Beedassy (blekraj(AT)yahoo.com), Apr 11 2005
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EXTENSIONS
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Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Apr 16 2005
Edited by N. J. A. Sloane (njas(AT)research.att.com), May 03 2007
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