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 A205126 #5 Mar 30 2012 18:58:10 %S A205126 3,8,3,8,20,48,28,8,180,20,11,48,416,28,180,48,68,180,76,20,5040,1012, %T A205126 368,48,2300,416,11232,28,1856,180,31,160,1023,68,5040,180,444,76, %U A205126 11232,160,41984,5040,524256,1012,180,368,188,48,2303,2300,1020 %N A205126 s(k)-s(j), where (s(k),s(j)) is the least such pair for which n divides their difference, and s(j)= j*(2^(j-1)). %C A205126 For a guide to related sequences, see A204892. %t A205126 (See the program at A205122.) %Y A205126 Cf. A205122, A204892. %K A205126 nonn %O A205126 1,1 %A A205126 _Clark Kimberling_, Jan 25 2012