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 A125968 #9 Mar 18 2020 07:30:44
%S A125968 7,9,20,40,49,56,59,74,77,114,125,140,146,170,180,192,214,295,301,339,
%T A125968 344,349,387,397,416,431,435,447,455,462,482,499,506,525,564,566,582,
%U A125968 600,611,625,634,642,676,679,691,699,700,716,719,740,769,780,792,807,819
%N A125968 Numbers k for which k^11+k^10-1 is prime.
%H A125968 Amiram Eldar, <a href="/A125968/b125968.txt">Table of n, a(n) for n = 1..10000</a>
%t A125968 Do[If[PrimeQ[x^11 + x^10 - 1], Print[x]], {x, 1, 400}]
%o A125968 (PARI) is(n)=isprime(n^11+n^10-1) \\ _Charles R Greathouse IV_, May 15 2013
%Y A125968 Cf. A000040, A045546, A125881-A125885, A125965-A125973.
%K A125968 nonn
%O A125968 1,1
%A A125968 _Artur Jasinski_, Dec 14 2006
%E A125968 More terms from _Amiram Eldar_, Mar 18 2020