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A025531
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a(n) = (2nd elementary symmetric function of {1/1, 1/2, ..., 1/n})*(LCM of S)^2, where S = {1,2,...,n}.
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0
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2, 36, 210, 6750, 8120, 459620, 2067170, 20522250, 22318758, 2905171038, 3098543448, 554652370272, 584150230092, 612299943684, 2556925522866
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