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                                                 11111 1888118881 1888111111
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        1 1 1 1 1
        1 8 8 8 1
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The only strobogrammatic and tetradic square-congruent prime of order 5. [Ward]

 

  Submitted: 2003-01-31 15:41:32;   Last Modified: 2008-07-16 09:27:00.



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