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 A037925 #8 Aug 11 2024 14:41:31 %S A037925 16,2,2,2,2,2,11,101,3,11,6397,3,163,6373,31636373 %N A037925 Trajectory of 16 under prime factor concatenation procedure. %H A037925 P. De Geest, <a href="https://www.worldofnumbers.com/topic1.htm">Home Primes</a> %Y A037925 Cf. A037273. %K A037925 fini,full,nonn,tabf,base %O A037925 0,1 %A A037925 _Jeff Burch_ %E A037925 Edited by _Charles R Greathouse IV_, Apr 30 2010