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A077168
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Triangle formed by grouping the natural numbers so that the n-th group contains n numbers whose product is a factorial.
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3
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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 259200, 15, 16, 17, 18, 19, 87178291200, 20, 21, 22, 23, 24, 25, 202741834014720, 26, 27, 28, 29, 30, 31, 32, 484725313854093312000000, 33, 34, 35, 36, 37, 38, 39, 40
(list; table; graph; refs; listen; history; internal format)
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