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A063833
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!n - 3 is prime.
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1
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1, 4, 5, 6, 13, 14, 20, 66, 91, 124, 212, 282, 460
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OFFSET
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1,2
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COMMENTS
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There are no further terms, because for n >= 467, 467 | !n - 3. - Serge Batalov, Jul 14 2017
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LINKS
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Table of n, a(n) for n=1..13.
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MATHEMATICA
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Do[ If[ PrimeQ[ Sum[ k!, {k, 0, n - 1} ] - 3 ], Print[ n ] ], {n, 1, 800} ]
Position[Accumulate[Range[0, 500]!], _?(PrimeQ[#-3]&)]//Flatten (* Harvey P. Dale, Sep 20 2019 *)
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CROSSREFS
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Cf. A063508.
Sequence in context: A280382 A055033 A089119 * A260107 A167434 A139061
Adjacent sequences: A063830 A063831 A063832 * A063834 A063835 A063836
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KEYWORD
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nonn,fini,full
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AUTHOR
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Robert G. Wilson v, Aug 21 2001
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STATUS
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approved
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