login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A020268 Strong pseudoprimes to base 42. 1
451, 529, 1247, 1541, 1765, 1807, 1991, 7421, 9773, 11041, 12167, 13333, 14491, 14981, 17611, 18721, 23521, 27511, 31417, 35443, 65305, 65641, 68101, 74089, 79003, 81631, 96727, 102719, 104653, 105271, 109061, 128143, 130561, 145351, 161101 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. J. Mathar, Table of n, a(n) for n = 1..300

Index entries for sequences related to pseudoprimes

CROSSREFS

Sequence in context: A269884 A145492 A269763 * A345319 A066322 A128922

Adjacent sequences: A020265 A020266 A020267 * A020269 A020270 A020271

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 16:09 EST 2022. Contains 358468 sequences. (Running on oeis4.)