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 A163547 #3 Mar 31 2012 13:21:18 %S A163547 0,1,2,1,4,9,10,5,8,13,18,13,10,5,4,9,16,17,26,25,36,49,50,37,40,53, %T A163547 58,45,34,29,20,25,32,41,50,41,52,65,74,61,72,85,98,85,74,61,52,65,58, %U A163547 53,40,45,34,25,20,29,26,17,16,25,36,37,50,49,64,81,82,65,68,73,90,85 %N A163547 The square of the distance from the origin to the n-th term in the type I Hilbert's Hamiltonian walk A163357. %H A163547 A. Karttunen, <a href="/A163547/b163547.txt">Table of n, a(n) for n = 0..65535</a> %F A163547 a(n) = A000290(A059252(n))+A000290(A059253(n)). %Y A163547 See also: A059261, A163531. %K A163547 nonn %O A163547 0,3 %A A163547 _Antti Karttunen_, Aug 01 2009