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A344418
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a(n) = n*a(n-1) + n^(1+n mod 2), a(0) = 0.
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2
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0, 1, 4, 13, 56, 281, 1692, 11845, 94768, 852913, 8529140, 93820541, 1125846504, 14636004553, 204904063756, 3073560956341, 49176975301472, 836008580125025, 15048154442250468, 285914934402758893, 5718298688055177880, 120084272449158735481, 2641853993881492180604
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OFFSET
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0,3
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LINKS
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FORMULA
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E.g.f.: (x+1)*sinh(x)/(1-x).
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MAPLE
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a:= proc(n) a(n):= n*a(n-1) + n^(1+n mod 2) end: a(0):= 0:
seq(a(n), n=0..23);
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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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