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 A059198 #10 Aug 04 2025 21:36:15 %S A059198 10,26,14,14,44,74,158 %N A059198 Ratios arising in A005184. %C A059198 Related to Collatz problem. %H A059198 <a href="/index/3#3x1">Index entries for sequences related to 3x+1 (or Collatz) problem</a> %e A059198 a(1) = 310/31 = 10. %Y A059198 Cf. A005184. %K A059198 nonn %O A059198 1,1 %A A059198 _N. J. A. Sloane_, Feb 28 2003 %E A059198 a(7) from _Donovan Johnson_, Nov 28 2013