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Search: id:A110720
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| A110720 |
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Beginning with 5, concatenation of n successive numbers such that every partial concatenation is a prime. |
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+0
2
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OFFSET
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1,1
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EXAMPLE
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5,523,523353637,... are all prime.
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CROSSREFS
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Cf. A110714, A110715, A110716, A110717, A110718, A110719, A110721.
Sequence in context: A055490 A002811 A120660 this_sequence A112613 A056234 A030766
Adjacent sequences: A110717 A110718 A110719 this_sequence A110721 A110722 A110723
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KEYWORD
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base,hard,more,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 05 2005
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