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A084559
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Smallest a(n)>n such that concatenation of numbers from n to a(n) is a prime.
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0
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OFFSET
| 2,1
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COMMENTS
| Terms a(1) and a(10) are currently unknown.
a(11) = 309, a(12) = 13.
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LINKS
| Weisstein, Eric W. Consecutive Number Sequences, MathWorld.
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EXAMPLE
| a(4)=9 because 456789 is a prime.
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CROSSREFS
| Cf. A030458, A030471, A052087, A052088, A052089.
Sequence in context: A139429 A114365 A179767 * A145688 A178985 A185446
Adjacent sequences: A084556 A084557 A084558 * A084560 A084561 A084562
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KEYWORD
| more,nonn,base,hard,changed
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Jun 27 2003
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EXTENSIONS
| Edited by Max Alekseyev (maxale(AT)gmail.com), Jan 28 2012
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