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A087595
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Smallest n-digit member of A087593. Define dd(k) = the number formed by concatenating the absolute difference of successive digits of k. Sequence contains smallest n-digit prime p such that dd(p) is also prime.
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3
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13, 101, 1009, 10009, 100363, 1000003, 10000141, 100000543, 1000000007, 10000000589, 100000000447, 1000000000063, 10000000000609, 100000000000721, 1000000000000843, 10000000000002547, 100000000000000609
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OFFSET
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2,1
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COMMENTS
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Conjecture: Sequence is infinite.
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LINKS
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EXAMPLE
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a(5) = 10009 and dd(10009) = 1009 is a prime.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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