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A104873 Concatenations of pairs of primes that differ by 10^12. +0
1
611000000000061, 1631000000000163, 1931000000000193, 2111000000000211, 2711000000000271, 3311000000000331, 5471000000000547, 6611000000000661, 7511000000000751, 7871000000000787, 9971000000000997, 10511000000001051 (list; graph; listen)
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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