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Search: id:A099658
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| A099658 |
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a(n) is the smallest prime greater than 4(10^n - 1)/9. |
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+0
1
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| 2, 5, 47, 449, 4447, 44449, 444449, 4444469, 44444453, 444444457, 4444444447, 44444444497, 444444444461, 4444444444493, 44444444444459, 444444444444461, 4444444444444463, 44444444444444461, 444444444444444469, 4444444444444444537, 44444444444444444447
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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a(n) = smallest prime > A002278(n).
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EXAMPLE
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n=4: 44 is followed by 47.
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MATHEMATICA
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(First define NextPrime as in A057447) Table[NextPrime[4*(10^n-1)/9], {n, 0, 35}]
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CROSSREFS
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Cf. A003618, A003617, A096497, A096498, A068104, A002275-A002283, A099656-A099668.
Sequence in context: A093552 A112266 A060808 this_sequence A102011 A004098 A005114
Adjacent sequences: A099655 A099656 A099657 this_sequence A099659 A099660 A099661
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KEYWORD
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base,nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Nov 17 2004
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EXTENSIONS
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Checked by N. J. A. Sloane (njas(AT)research.att.com), Jan 27 2007
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