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A048531
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a(n)*(a(n)+1) is smallest pronic number containing exactly n 1's.
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1
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3, 10, 105, 1010, 10203, 33928, 105551, 335128, 1054130, 12313046, 100573943, 333192303, 1054092885, 4261585525, 30184681729, 133083117303
(list; graph; refs; listen; history; internal format)
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