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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
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OFFSET
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1,1
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COMMENTS
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Odd prime digit = 3, 5 or 7.
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LINKS
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EXAMPLE
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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
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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