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A261997
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a(n) = prime(n)! - prime(n!).
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3
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0, 3, 107, 4951, 39916141, 6227015357, 355687428046967, 121645100408347963, 25852016738884971417571, 8841761993739701954543554805353, 8222838654177922817725562105174617
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listen;
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text;
internal format)
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OFFSET
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1,2
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COMMENTS
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a(n) is prime for n = 2, 3, 4, 5, 7.
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LINKS
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FORMULA
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EXAMPLE
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For n=2, a(n) = prime(n)! - prime(n!) = prime(2)! - prime(2!) = 3.
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MATHEMATICA
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PROG
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(PARI) vector(11, n, prime(n)! - prime(n!))
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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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