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A102329
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a(n) is the least prime p such that the largest prime divisor of 1+p^n is less than p.
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0
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OFFSET
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1,1
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COMMENTS
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These are the smallest p primes such that 1+p^n are p-smooth, i.e. with all prime-divisors less than p. The same holds for A102325-A102328. For the majority of p's, 1+p^n appear to be not p-smooth, i.e. have large enough greatest prime divisors.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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