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 A108545 #8 Nov 28 2019 06:13:58 %S A108545 13,43,53,61,71,73,83,89,113,137,139,151,179,191,197,199,223,229,233, %T A108545 239,251,257,269,281,307,317,331,337,347,349,359,373,401,421,431,443, %U A108545 461,463,467,479,491,499,521,523,541,547,557,569,577,587,599,601,617 %N A108545 Primes that are not factors of golden semiprimes (A108540). %C A108545 Complement of A108543; %C A108545 abs(a(i) - a(j) * phi) > 1 for all i and j, where phi = golden ratio = (1+sqrt(5))/2. %H A108545 Amiram Eldar, <a href="/A108545/b108545.txt">Table of n, a(n) for n = 1..10000</a> %Y A108545 Cf. A001622, A108539, A108540, A108542, A108543, A108544. %K A108545 nonn %O A108545 1,1 %A A108545 _Reinhard Zumkeller_, Jun 09 2005