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A056111
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Highest proper factor of n!+1.
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2
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1, 1, 1, 1, 5, 11, 103, 71, 661, 19099, 329891, 1, 36846277, 75024347, 3790360487, 22163972339, 1230752346353, 538105034941, 336967037143579, 1713311273363831, 117876683047, 1188161445853707907
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OFFSET
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0,5
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LINKS
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Table of n, a(n) for n=0..21.
Hisanori Mishima, Factorizations of many number sequences
Hisanori Mishima, Factorizations of many number sequences
R. G. Wilson v, Explicit factorizations
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FORMULA
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a(n) = A038507(n)/A051301(n)
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MATHEMATICA
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a[n_] := Divisors[n!+1][[ -2]]
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CROSSREFS
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Cf. A002583, A038507, A051301, A056110.
Corrected and extended by Dean Hickerson, Aug 30, 2001
Sequence in context: A030085 A113403 A022006 * A090160 A062652 A075706
Adjacent sequences: A056108 A056109 A056110 * A056112 A056113 A056114
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KEYWORD
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nonn
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AUTHOR
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Henry Bottomley, Jun 12 2000
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STATUS
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approved
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