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A004042 Periods of reciprocals of A006883. +0
8
0, 142857, 5882352941176470, 526315789473684210, 4347826086956521739130, 3448275862068965517241379310, 2127659574468085106382978723404255319148936170 (list; graph; listen)
OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Full Reptend Prime

Eric Weisstein's World of Mathematics, Cyclic Number

MATHEMATICA

f[n_]:=Block[{q}, q=Last[First[RealDigits[1/n]]]; If[IntegerQ[q], q={}]; FromDigits[q]]; q=0; lst={}; Do[If[StringLength[ToString[f[n]]]>q, AppendTo[lst, f[n]]; q=StringLength[ToString[f[n]]]], {n, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), May 21 2009]

CROSSREFS

Sequence in context: A101202 A144504 A146754 this_sequence A145742 A133324 A110084

Adjacent sequences: A004039 A004040 A004041 this_sequence A004043 A004044 A004045

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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