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A048533
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a(n)*(a(n)+1) is smallest pronic number containing exactly n 2's.
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1
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1, 16, 141, 458, 1458, 10593, 36458, 471933, 471404, 3496458, 14930593, 149072541, 471446966, 149071198, 14907133333, 114989226548
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