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A067580
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a(n)=prod(i=1,n,bigomega(i))*sum(i=1,n,1/bigomega(i))
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0
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1, 2, 5, 7, 16, 20, 64, 140, 304, 352, 1104, 1248, 2640, 5568, 22848, 25152, 77760, 84672, 260928, 542592, 1126656, 1209600, 4921344, 10174464, 21012480, 64364544, 197074944, 209018880, 639000576, 674832384, 3409993728
(list; graph; refs; listen; history; internal format)
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