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A083980
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Smallest palindromic prime containing exactly n 9's.
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10
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191, 919, 19991, 1993991, 9199919, 199909991, 199999991, 90999599909, 95999999959, 99999199999, 9599999999959, 199999959999991, 959999999999959, 39999999299999993, 94999999999999949, 99999999299999999, 9299999999999999929, 9999999992999999999
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Table[d = 9; i = 1;
While[ x = IntegerDigits[Prime[i]];
x != Reverse[x] || Count[x, d] != n , i++];
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 21 2003
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EXTENSIONS
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STATUS
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approved
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