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A105981
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Near-repdigit primes with 3 as repeated digit.
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5
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233, 313, 331, 337, 353, 373, 383, 433, 733, 2333, 3313, 3323, 3331, 3343, 3373, 3433, 3533, 3733, 3833, 5333, 7333, 23333, 31333, 33331, 33343, 33353, 33533, 38333, 313333, 323333, 331333, 333233, 333323, 333331, 333337, 333383, 333433, 333533
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(2)=313 is a term because all digits are equal to 3 except one.
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MATHEMATICA
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Table[Sort[Select[FromDigits/@Flatten[Permutations/@Table[PadRight[ {n}, i, 3], {n, {1, 2, 4, 5, 7, 8}}], 1], PrimeQ]], {i, 3, 6}]//Flatten (* Harvey P. Dale, May 17 2017 *)
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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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STATUS
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approved
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