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A066738
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Primes that are concatenations of nonprime numbers.
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0
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11, 19, 41, 61, 89, 101, 109, 127, 139, 149, 151, 157, 163, 181, 191, 193, 199, 211, 229, 241, 251, 269, 271, 281, 331, 349, 359, 389, 401, 409, 419, 421, 433, 439, 449, 457, 461, 463, 487, 491, 499, 509, 521, 541, 569, 571, 601, 619, 631, 641, 659, 661
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| The prime 163 is the concatenation of nonprime numbers 1 and 63. 419 is the concatenation of 4, 1 and 9.
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CROSSREFS
| Sequence in context: A136026 A033201 A154386 * A081027 A084986 A034844
Adjacent sequences: A066735 A066736 A066737 * A066739 A066740 A066741
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KEYWORD
| base,easy,nonn
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AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 16 2002
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EXTENSIONS
| More terms from Larry Reeves (larryr(AT)acm.org), Apr 03 2002
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