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A155479
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Prime(n) without odd prime digits of n.
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0
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2, 3, 7, 13, 19, 23, 29, 31, 37, 43, 53, 61, 67, 71, 73, 79, 89, 101, 107, 109, 173, 179, 181, 193, 199, 223, 227, 281, 283, 293, 311, 317, 337, 347, 409, 419, 421, 433, 443, 457, 461, 463, 467, 479, 491, 503, 521, 523, 541, 547, 557, 569, 577, 593, 599, 601
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Odd prime digit = 3, 5 or 7.
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EXAMPLE
| If n=1=nonprime and 2=prime(1), then 2=a(1). If n=2=even prime and 3=prime(2), then 3=a(2). If n=4=composite and 7=prime(4), then 7=a(3), etc.
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CROSSREFS
| Cf. A000027, A000040, A002808, A141468.
Sequence in context: A159079 A068947 A068948 * A019411 A105792 A130903
Adjacent sequences: A155476 A155477 A155478 * A155480 A155481 A155482
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KEYWORD
| nonn,base
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AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 23 2009
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EXTENSIONS
| Corrected (599 inserted) by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 10 2010
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