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A091861
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a(1) = 1; a(n) = smallest positive unpicked integer such that n-k divides evenly into a(n)*a(k) for every k, 1 <= k <= n-1.
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0
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1, 2, 4, 3, 12, 30, 60, 420, 840, 1260, 630, 27720, 4620, 60060, 30030, 120120, 240240, 2042040, 3063060, 232792560, 58198140, 38798760, 19399380, 446185740, 892371480, 2230928700, 4461857400, 40156716600, 20078358300, 582272390700
(list; graph; refs; listen; history; internal format)
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