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A085895
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Group the natural numbers such that the product of the n-th group is divisible by 2^n . (1), (2) (3,4), (5,6,7,8), (9,10,11,12,13,14,),(15,16,17,18),... Sequence contains the product of the terms of the groups.
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3
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1, 2, 12, 1680, 2162160, 73440, 96909120, 424097856000, 5339572260422400, 57407703889536000, 1573144097507348889600, 89247024757574635311360000, 131197375012291112448000, 6932022668773077815267328000
(list; graph; refs; listen; history; internal format)
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