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 A275105 #6 Jul 27 2016 21:28:21 %S A275105 1,2,5,4,3,6,7,8,17,12,10,13,23,16,19,28,24,9,15,18,21,20,14,22,11,25, %T A275105 27,26,30,32,29,31,62,50,48,43,57,58,56,44,40,52,54,53,59,47,74,63,45, %U A275105 37,79,83,84,36,67,77,95,33,91,94,86,93,96,97,35 %N A275105 First column of Hilbert curve in A275103. %H A275105 Kerry Mitchell, <a href="/A275105/b275105.txt">Table of n, a(n) for n = 0..255</a> %Y A275105 Cf. A275103 for the curve, A275104 for the first row %K A275105 nonn %O A275105 0,2 %A A275105 _Kerry Mitchell_, Jul 16 2016