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A114975
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11^n+n^11 is semiprime.
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0
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OFFSET
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1,1
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LINKS
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EXAMPLE
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6 is OK because 11^6 + 6^11 = 1771561 + 362797056 = 364568617 = 7*52081231(semiprime).
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PROG
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(Magma) IsSemiprime:=func< n | &+[ k[2]: k in Factorization(n) ] eq 2 >; [ n: n in [1..70]|IsSemiprime(11^n+n^11)] // [Vincenzo Librandi, Dec 16 2010]
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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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