login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A020238 Strong pseudoprimes to base 12. 2
91, 133, 145, 247, 1649, 1729, 2821, 8911, 9073, 10585, 13051, 13333, 16471, 19517, 20737, 21361, 24013, 24727, 26467, 29539, 31483, 31621, 34219, 34861, 35881, 38311, 38503, 40321, 53083, 67861, 79381, 79501, 88831, 97351, 115231, 121301, 131977 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..210 from R. J. Mathar)

Index entries for sequences related to pseudoprimes

CROSSREFS

Cf. A020140, A001262 (base 2), A020229 (base 3), A020230, A020231, A020232, A020233, A020234, A020235, A020236, A020237.

Sequence in context: A020235 A046427 A179338 * A220171 A260974 A020301

Adjacent sequences:  A020235 A020236 A020237 * A020239 A020240 A020241

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 10 08:13 EDT 2020. Contains 336368 sequences. (Running on oeis4.)