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A064699
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Integers for which the smallest m in A040076 such that n*2^m+1 is prime (A050921) increases.
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5
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1, 3, 7, 17, 19, 31, 47, 383, 2897, 3061, 4847, 5359
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Where records occur in A040076. A103964 gives the record values.
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MATHEMATICA
| a = -1; Do[m = 0; While[ !PrimeQ[n*2^m + 1], m++ ]; If[m > a, a = m; Print[n]], {n, 1, 10^3} ]
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CROSSREFS
| Cf. A040076, A050921.
Sequence in context: A140863 A076194 A167168 * A113304 A194945 A093651
Adjacent sequences: A064696 A064697 A064698 * A064700 A064701 A064702
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KEYWORD
| more,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 16 2001
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EXTENSIONS
| Corrected and extended by T. D. Noe (noe(AT)sspectra.com), Nov 15 2010
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