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A193888
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Prime numbers p for which p1=base(p,9), p2=base(p1,8), p3=base(p2,7) and p4=base(p3,6) are prime, where base(N,b) means N written in base b and read in base 10.
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2
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2, 3, 5, 136447, 1555117, 2520943, 3085063, 4517173, 4755061, 5761801, 7991773, 8997883, 9057493, 9193543, 9672373, 10964449
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OFFSET
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1,1
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COMMENTS
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Sequence suggested by a question posed in the "primenumbers" group, cf. Link.
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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