This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A065798 #34 Sep 13 2021 02:31:37
%S A065798 3,4,5,6,9,17,22,85,710,844,1379
%N A065798 Numbers k such that k^k - k - 1 is prime.
%C A065798 There is no further term up to 3000. - _Farideh Firoozbakht_, Oct 19 2006
%C A065798 a(12) > 20000. - User "Someone", added by _Dmitry Petukhov_, Sep 09 2021
%C A065798 If it exists, a(12) > 40000. - _Dmitry Petukhov_, Sep 12 2021
%H A065798 User "Someone", <a href="https://dxdy.ru/post1530795.html#p1530795">Petrov's sequence - probability of distribution of p.h.</a> (in Russian).
%t A065798 Do[ If[ PrimeQ[ n^n - n - 1], Print[n]], {n, 1, 750} ]
%o A065798 (PARI) is(n)=ispseudoprime(n^n-n-1) \\ _Charles R Greathouse IV_, May 22 2017
%Y A065798 Cf. A058912 (k^k+k-1).
%K A065798 nonn,more
%O A065798 1,1
%A A065798 _Robert G. Wilson v_, Dec 05 2001
%E A065798 a(9)-a(11) from _Farideh Firoozbakht_, Oct 19 2006