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A068099
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a(1) = 1; a(n+1) = n! sum{k|n} a(k)/k where sum is over positive divisors k of n.
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0
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1, 1, 3, 12, 108, 2712, 327240, 235617840, 1187514095040, 47880568312738560, 17374900629326652478080, 63050039403700556512496620800
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OFFSET
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1,3
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LINKS
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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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