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Search: id:A156341
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| A156341 |
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Primes with smallest digit nonprime. |
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+0
1
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| 11, 13, 17, 19, 31, 41, 47, 61, 67, 71, 89, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 241, 251, 271, 281, 307, 311, 313, 317, 331, 401, 409, 419, 421, 431, 449, 457, 461, 467, 479, 487, 491
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Nonprime digits are 0, 1, 4, 6, 8 or 9.
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EXAMPLE
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a(1)=11(1=1=nonprime), a(2)=13(nonprime=1<3), etc.
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CROSSREFS
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Cf. A000040.
Sequence in context: A045798 A155071 A003626 this_sequence A154981 A092912 A092911
Adjacent sequences: A156338 A156339 A156340 this_sequence A156342 A156343 A156344
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KEYWORD
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nonn,base
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Feb 08 2009
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EXTENSIONS
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Inserted 71. Replaced 478 by 479. R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 13 2009
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