login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A100907 Numbers n such that (22^n-1)^2-2 is prime. 0
1, 8, 35, 88, 503, 8643, 8743, 14475 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Next term > 22000.

LINKS

Table of n, a(n) for n=1..8.

S. Harvey, Carol and Kynea Primes.

PROG

(PARI) is(n)=ispseudoprime((22^n-1)^2-2) \\ Charles R Greathouse IV, Feb 19 2016

CROSSREFS

Sequence in context: A136016 A257454 A305672 * A303383 A265840 A212903

Adjacent sequences:  A100904 A100905 A100906 * A100908 A100909 A100910

KEYWORD

nonn,more

AUTHOR

Ray Chandler, Nov 21 2004

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 21 06:54 EDT 2019. Contains 326162 sequences. (Running on oeis4.)