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Search: id:A071234
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| A071234 |
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Smallest prime beginning and ending in 2n+1 or 0 if no such prime exists. |
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1
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| 131, 3, 5, 7, 919, 11311, 13313, 0, 17117, 19219, 21121, 23623, 0, 27127, 29129, 31231, 33533, 0, 37337, 39139
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