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 A165487 #3 Mar 31 2012 13:21:19 %S A165487 0,1,4,1,4,9,4,9,16,25,36,49,36,25,36,25,36,49,64,49,64,49,64,81,64, %T A165487 81,64,49,64,81,64,81,100,81,100,121,144,121,100,121,144,121,100,121, %U A165487 144,169,196,225,196,225,256,225,196,169,144,169,196,225,256,289,256 %N A165487 Squared version of A165477. %C A165487 Period 131071. See comments in A165479. %H A165487 A. Karttunen, <a href="/A165487/b165487.txt">Table of n, a(n) for n = 0..131071</a> %Y A165487 a(n) = A000290(A165477(n)). Cf. A165486, A165488. %K A165487 nonn %O A165487 0,3 %A A165487 _Antti Karttunen_, Sep 21 2009