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
KEYWORD
nonn,hard,more
AUTHOR
Felix Fröhlich, Jul 21 2022
EXTENSIONS
a(5) from Jason Yuen, May 12 2024
STATUS
approved