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A083384
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a(n) = n*Sum(((k-1)/2)*k!*Stirling_2(n,k),k=1..n).
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2
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0, 2, 27, 316, 3825, 49866, 706923, 10899512, 182218005, 3289724710, 63865092159, 1327750936788, 29447495757225, 694257067232834, 17343019158929235, 457695211932767344, 12726295039220109885, 371902424983010438238, 11396594412860395106151, 365458808048854606362380
(list; graph; refs; listen; history; internal format)
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