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 A175547 #4 Apr 04 2015 21:56:18 %S A175547 123456789,214365897,341278956,432189675,567891234,658917342, %T A175547 789523461,896742513,975634128 %N A175547 Lexicographically earliest sequence of increasing 9-digit zeroless anagrams that share no common digit place with previous terms. %Y A175547 Cf. A114288 / A112454 Lexicographically earliest / maximal solution of any 9 X 9 sudoku. A050289 Zeroless pandigital numbers: numbers containing the digits 1-9 and no 0's. %K A175547 fini,full,nonn,base %O A175547 1,1 %A A175547 _Zak Seidov_, Jun 24 2010