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A072163 a(n)-th factorial is the smallest factorial containing exactly n 2's, or 0 if no such number exists. +0
9
2, 14, 13, 30, 40, 47, 31, 46, 54, 49, 65, 76, 62, 69, 107, 78, 86, 115, 95, 121, 109, 165, 110, 113, 149, 151, 146, 137, 162, 159, 170, 191, 195, 174, 190, 196, 164, 209, 202, 173, 198, 248, 201, 262, 231, 205, 263, 233, 246, 256, 270, 244, 287, 200, 271, 250 (list; graph; listen)
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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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