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A275274
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p - n!, where p is the fourth smallest prime > n!.
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2
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6, 9, 11, 17, 19, 23, 41, 41, 47, 47, 29, 83, 139, 79, 223, 149, 83, 101, 137, 79, 59, 131, 271, 283, 131, 263, 137, 197, 373, 313, 379, 137, 307, 151, 257, 761, 457, 151, 443, 89, 229, 167, 181, 191, 467, 1109, 739, 103, 401, 353, 487, 827, 449, 617, 307
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OFFSET
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1,1
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COMMENTS
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Is every term except the first two a prime?
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LINKS
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EXAMPLE
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For n = 4, we have n! = 24, so that p = 41, and a(4) = 17.
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MATHEMATICA
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Table[NextPrime[n!, 4] - n!, {n, 1, 150}]
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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