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 A226675 #4 Jun 20 2013 14:30:01 %S A226675 1,187,23,41,3811,7,899,7,13,35,4513,5,19,25,13,1,23,17,23,25,5,7,25, %T A226675 13,29,11,23,31,161,13,5,1,67 %N A226675 Smallest element in the primitive Collatz-like 3x+k cycle(s) associated with the conjectured record-breaking number A226673(n) of odd elements. %Y A226675 The value of k associated with a(n) is A226674(n). %K A226675 nonn %O A226675 1,2 %A A226675 _Geoffrey H. Morley_, Jun 19 2013