login

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 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A100907
Numbers n such that (22^n-1)^2-2 is prime.
3
1, 8, 35, 88, 503, 8643, 8743, 14475
OFFSET
1,2
COMMENTS
Next term > 22000.
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
KEYWORD
nonn,more
AUTHOR
Ray Chandler, Nov 21 2004
STATUS
approved