OFFSET
1,2
COMMENTS
No other terms below 10^15. Some larger terms: 9151612250553176993, 1401778935853533028413047652833, 5645122353966835994338815444821661584288016927879134, 313*(3^626+11)/6562567821545333606830 (280 digits). - Max Alekseyev, Oct 14 2016
EXAMPLE
3^10 + 11 = 59060 = 10 * 5906, so 10 is a term.
PROG
(PARI) is(n)=Mod(3, n)^n==-11; \\ Joerg Arndt, Oct 10 2016
(Python)
A277340_list = [1, 2, 4, 7, 10]+[n for n in range(11, 10**6) if pow(3, n, n)==n-11] # Chai Wah Wu, Oct 11 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Oct 09 2016
EXTENSIONS
a(13)-a(14) from Chai Wah Wu, Oct 12 2016
a(15)-a(20) from Max Alekseyev, Oct 14 2016
STATUS
approved