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A275929
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a(n) = 2*(n-1)! + n + 1.
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3
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4, 5, 8, 17, 54, 247, 1448, 10089, 80650, 725771, 7257612, 79833613, 958003214, 12454041615, 174356582416, 2615348736017, 41845579776018, 711374856192019, 12804747411456020, 243290200817664021, 4865804016353280022, 102181884343418880023, 2248001455555215360024
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listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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E.g.f.: (1+x)*exp(x) - 2*log(1-x) - 1. - Robert Israel, Aug 30 2016
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MAPLE
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MATHEMATICA
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PROG
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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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