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Search: id:A090540
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A090540 Beginning with 3, least prime obtained by sandwiching the previous term between strings of identical digits. +0
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3, 131, 11311, 771131177, 33337711311773333, 77777733337711311773333777777, 3777777333377113117733337777773, 33377777733337711311773333777777333, 333333337777773333771131177333377777733333333, 9933333333777777333377113117733337777773333333399, 33333993333333377777733337711311773333777777333333339933333 (list; graph; listen)
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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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