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A086475
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a(1) = 1 and then least squarefree number such that every partial concatenation of 2 or more terms is a prime.
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0
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1, 3, 7, 11, 13, 29, 37, 113, 123, 229, 287, 319, 443, 481, 533, 541, 557, 771, 777, 991, 1479, 1487, 1663, 2063, 2163, 2193, 2553, 2911, 3251, 3391, 3867, 3873, 3983, 4021, 4047, 4233, 4481, 4777, 4937, 4981, 6123, 6711, 7251
(list; graph; refs; listen; history; internal format)
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