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 A176683 #9 Aug 03 2024 19:29:07
%S A176683 90,120,210,270,300,510,690,720,780,960,1200,2190,4260,4350,4470,4920,
%T A176683 4980,5040,5100,5250,5550,5670,5730,5790,6810,8100,8280,8490,8610,
%U A176683 9150,9540,9990,10140,10200,10650,11130,11430,12060,12510,12930,13770,13800
%N A176683 Numbers k such that k^2 +-11 are primes.
%H A176683 Daniel Starodubtsev, <a href="/A176683/b176683.txt">Table of n, a(n) for n = 1..10000</a>
%e A176683 90 is in the sequence, because 90^2 - 11 = 8089 and 90^2 + 11 = 8111 are primes.
%t A176683 Select[Range[8! ],PrimeQ[ #^2-11]&&PrimeQ[ #^2+11]&]
%t A176683 Select[Range[14000],AllTrue[#^2+{11,-11},PrimeQ]&] (* _Harvey P. Dale_, Aug 03 2024 *)
%Y A176683 Cf. A097698, A108701, A176681, A176682
%K A176683 nonn
%O A176683 1,1
%A A176683 _Vladimir Joseph Stephan Orlovsky_, Apr 23 2010