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A073799 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. +0
3
2, 7, 19, 53, 131, 311, 719, 1619, 3671, 8161, 17863, 38873, 84017, 180503 (list; graph; listen)
OFFSET

1,1

COMMENT

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.

FORMULA

Solutions to Mod[2^(x-1), Pi(x-1)]>0 but Mod[2^x, Pi(x)]=0.

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 this_sequence A040016 A145519 A030224

Adjacent sequences: A073796 A073797 A073798 this_sequence A073800 A073801 A073802

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Aug 12 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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