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!)
A020252 Strong pseudoprimes to base 26. 1
9, 25, 27, 217, 475, 703, 925, 5041, 9073, 11041, 17575, 24727, 25299, 31651, 33227, 35881, 47197, 55537, 60701, 61975, 68251, 70561, 76627, 79003, 85321, 95051, 96641, 111361, 115669, 137017, 137257, 146611, 153781, 174123, 193901, 216763, 220039 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. J. Mathar, Table of n, a(n) for n = 1..226

Index entries for sequences related to pseudoprimes

CROSSREFS

Sequence in context: A074852 A322177 A321874 * A076486 A270337 A339842

Adjacent sequences:  A020249 A020250 A020251 * A020253 A020254 A020255

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 March 7 10:30 EST 2021. Contains 341869 sequences. (Running on oeis4.)