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 A210017 #8 Jun 10 2016 00:21:00 %S A210017 203415,204315,205134,205143,235104,250314,251403,302514,305124, %T A210017 305214,312405,314025,314052,321045,321054,341205,410235,431205, %U A210017 451032,503124,512034,512043,512403,520143,520314,521403,541032 %N A210017 In base 6, numbers n which have 6 distinct digits, do not start with 0, and have property that the product (written in base 6) of any two adjacent digits is a substring of n. %C A210017 Computed by Jean-Paul Davalan. %C A210017 The analog in base 2 is 10; in base 3, 102,120,201,210. %H A210017 Eric Angelini, <a href="http://www.cetteadressecomportecinquantesignes.com/DixChiffres.htm">10 different digits, 9 products</a> %H A210017 E. Angelini, <a href="/A198298/a198298.pdf">10 different digits, 9 products</a> [Cached copy, with permission] %Y A210017 A generalization of A198298. Cf. A210013-A210020, A203569, A203566. %K A210017 nonn,base,fini,full %O A210017 1,1 %A A210017 _N. J. A. Sloane_, Mar 16 2012