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 A273064 #8 May 15 2016 23:39:53 %S A273064 1,2,3,7,10,13,13,13,31,37,37,37,61,61,61,83,83,83,127,127,127,127, %T A273064 127,179,179,179,179,179,193,193,193,193,193,193,193,193,277,277,277, %U A273064 277,277,277,383,383,383,383,383,479,479,479,479,479,479,479,541,541,541,541,541,541,541,541,541,641,641,641,641,641,641,641 %N A273064 Discriminator of the factorials A000142. %C A273064 The discriminator of a sequence is the least positive integer k such that the first n terms of the sequence are incongruent, modulo k. %C A273064 Here we take the factorials starting with 1! = 1. %C A273064 Differs from A208494 only at n=1. - _R. J. Mathar_, May 15 2016 %Y A273064 Cf. A000142. %K A273064 nonn %O A273064 1,2 %A A273064 _Jeffrey Shallit_, May 14 2016