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 A325141 #4 May 20 2019 06:34:29 %S A325141 925,1700,2435,3147,3848,4538,5189,5875,6537,7201,7843,8475,9112,9749, %T A325141 10391 %N A325141 Number of primes represented by cyclotomic binary forms < 10000*n. %C A325141 Empirically approximated by (3/4)*x/(log(x) - 1). %Y A325141 Cf. A325143. %K A325141 nonn,more %O A325141 1,1 %A A325141 _Peter Luschny_, May 20 2019