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Search: id:A083192
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| A083192 |
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a(1) = 1, then the rearrangement of composite numbers such that the concatenation of n terms from the n-th term is a prime. (Concatenation of n-th term to (2n-1)th term is a prime number). |
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2
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| 1, 4, 21, 6, 49, 8, 77, 9, 39, 10, 111, 12
(list; graph; listen)
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