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A131057
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Least nonnegative k such that n!-k is semiprime.
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0
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0, 2, 1, 2, 7, 1, 2, 1, 5, 3, 1, 19, 11, 1, 19, 19, 11, 1, 19, 23, 1, 1, 47, 1, 1, 29, 3, 29, 2, 59, 73, 1, 43, 1, 13, 17, 41, 1, 2, 5, 3, 53, 79, 7, 1, 53, 23, 1
(list; graph; refs; listen; history; internal format)
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