login
A355964
Primes p such that (p+9)^(p-1) == 1 (mod p^2).
6
13, 19, 2207, 26041, 332698495781
OFFSET
1,1
COMMENTS
a(6) > 10^13 if it exists. - Jason Yuen, May 12 2024
PROG
(PARI) forprime(p=1, , if(Mod(p+9, p^2)^(p-1)==1, print1(p, ", ")))
CROSSREFS
(p+k)^(p-1) == 1 (mod p^2): A355959 (k=2), A355960 (k=5), A355961 (k=6), A355962 (k=7), A355963 (k=8), A355965 (k=10).
Sequence in context: A146047 A343034 A145944 * A330425 A335971 A176150
KEYWORD
nonn,hard,more
AUTHOR
Felix Fröhlich, Jul 21 2022
EXTENSIONS
a(5) from Jason Yuen, May 12 2024
STATUS
approved