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A028990
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Largest palindromic prime with 2n+1 digits.
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0
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7, 929, 98689, 9989899, 999727999, 99999199999, 9999987899999, 999999787999999, 99999999299999999, 9999999992999999999, 999999999757999999999, 99999999997579999999999
(list; graph; refs; listen; history; internal format)
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