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A111380
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Smallest prime whose digital sum is equal to the n-th composite number not congruent to 0 (modulo 3).
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2
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13, 17, 19, 59, 79, 389, 499, 997, 1889, 1999, 6899, 17989, 8999, 39989, 49999, 98999, 199999, 598999, 599999, 799999, 2998999, 2999999, 4999999, 9899999, 19999999, 29999999, 59999999, 189997999, 389999999, 689899999, 699899999, 998999999
(list; graph; refs; listen; history; internal format)
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