OFFSET
1,2
COMMENTS
a(17) > 10^5. - Michel Marcus, Nov 22 2013
PROG
(PARI) isok(n) = Mod(prime(n+1), n)^3 == Mod(prime(n), n)^3; \\ Michel Marcus, Nov 22 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 06 2002
EXTENSIONS
a(16) from Michel Marcus, Nov 22 2013
More terms from Jinyuan Wang, Apr 06 2020
STATUS
approved