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Search: id:A099668
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A099668 a[n] is the largest prime before A002282[n] repdigits. +0
11
7, 83, 887, 8887, 88883, 888887, 8888861, 88888883, 888888887, 8888888837, 88888888859, 888888888887, 8888888888857, 88888888888873, 888888888888883, 8888888888888753, 88888888888888801, 888888888888888859 (list; graph; listen)
OFFSET

1,1

EXAMPLE

n=2: 83 is before 88.

MATHEMATICA

<<NumberTheory`NumberTheoryFunctions` Table[Table[PreviousPrime[8*(10^n-1)/9], {n, 1, 35}]

CROSSREFS

Cf. A003618, A003617, A096497, A096498, A068104, A002275-A002283, A099656-A099667.

Adjacent sequences: A099665 A099666 A099667 this_sequence A099669 A099670 A099671

Sequence in context: A141872 A089342 A075137 this_sequence A053128 A027819 A099674

KEYWORD

base,nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Nov 17 2004

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Last modified October 13 09:05 EDT 2008. Contains 145008 sequences.


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