OFFSET
1,2
COMMENTS
No other terms below 10^15. - Max Alekseyev, Oct 17 2016
FORMULA
A066603(a(n)) = a(n) - 6 for n > 1.
EXAMPLE
5^11 + 6 = 48828131 = 11 * 4438921, so 11 is a term.
PROG
(PARI) isok(n) = Mod(5, n)^n == -6; \\ Michel Marcus, Oct 10 2016
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Seiichi Manyama, Oct 10 2016
EXTENSIONS
a(5)-a(9) from Max Alekseyev, Oct 17 2016
STATUS
approved