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A052225
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a(n) = (n+1)!*(n+3)-3
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0
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5, 27, 141, 837, 5757, 45357, 403197, 3991677, 43545597, 518918397, 6706022397, 93405311997, 1394852659197, 22230464255997, 376610217983997, 6758061133823997, 128047474114559997, 2554547108585471997
(list; graph; refs; listen; history; internal format)
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