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A048541
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a(n)*(a(n)+1) is smallest pronic number containing exactly n 6's.
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1
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2, 60, 257, 816, 4082, 77887, 258237, 816512, 4546060, 25820081, 103276578, 815209584, 816472087, 2581876578, 24834787435, 258140787487
(list; graph; refs; listen; history; internal format)
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