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A083975
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Smallest palindromic prime containing exactly n 4's.
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9
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11411, 14341, 1464641, 1447441, 1444441, 144404441, 14244444241, 34444344443, 74444444447, 1444447444441, 3444444444443, 144444454444441, 14144444444444141, 34444444044444443, 1414444444444444141, 1444444447444444441, 104444444444444444401
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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 = 4; 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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