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A073799
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Values at which the least nonnegative remainder of division 2^n/Pi[n] equals zero arise in clusters of consecutive integers. Sequence gives initial terms of clusters.
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2
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2, 7, 19, 53, 131, 311, 719, 1619, 3671, 8161, 17863, 38873, 84017, 180503
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Length of successive burst is 3,4,4,6,6,6,2,6,20,28,30,.. respectively. Next value seems a bit larger than double of previous one.
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FORMULA
| Solutions to Mod[2^(x-1), Pi(x-1)]>0 but Mod[2^x, Pi(x)]=0.
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CROSSREFS
| Cf. A000079, A000720, A015910, A062173, A064367, A073797, A073798.
Cf. A033844. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 23 2008]
Sequence in context: A099484 A018030 A051354 * A040016 A145519 A030224
Adjacent sequences: A073796 A073797 A073798 * A073800 A073801 A073802
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Aug 12 2002
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