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A068216 Smallest n-digit pseudoprimes (in base 2). 3
341, 1105, 10261, 101101, 1004653, 10004681, 100017223, 1001152801, 10000321321, 100004790097, 1000001376901, 10000130243671, 100000105970311, 1000000191735161, 10000006286491369, 100000010102756401, 1000000114865704261, 10000000494514450733 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..20.

P. De Geest, Smallest n-digit pseudoprimes (base 2)

Index entries for sequences related to pseudoprimes

CROSSREFS

Cf. A001567, A067845, A001262, A062568, A062852.

Sequence in context: A066488 A291601 A083876 * A038473 A276733 A050217

Adjacent sequences:  A068213 A068214 A068215 * A068217 A068218 A068219

KEYWORD

nonn,base

AUTHOR

Patrick De Geest and Shyam Sunder Gupta, Feb 21 2002.

EXTENSIONS

One more term from Farideh Firoozbakht, Jan 10 2007

More terms from Jens Kruse Andersen, May 11 2008

Offset corrected by Arkadiusz Wesolowski, Dec 14 2011

STATUS

approved

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Last modified September 26 05:09 EDT 2017. Contains 292502 sequences.