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 A161753 #18 Jul 29 2017 04:12:39
%S A161753 0,1,16,36,64,81,100,144,196,225,256,324,400,441,484,576,625,676,729,
%T A161753 784,900,1024,1089,1156,1225,1296,1444,1521,1600,1764,1936,2025,2116,
%U A161753 2304,2401,2500,2601,2704,2916,3025,3136,3249,3364,3600,3844,3969,4096
%N A161753 Squares of nonprime numbers A141468.
%C A161753 Essentially the same as A062312: a(1)=0, a(n)=A062312(n-1) for n>=2. - _R. J. Mathar_, Sep 11 2012
%H A161753 G. C. Greubel, <a href="/A161753/b161753.txt">Table of n, a(n) for n = 1..5000</a>
%e A161753 0=0^2, 1=1^2, 16=4^2, 36=6^2, etc.
%t A161753 With[{nn=100},Complement[Range[0,nn],Prime[Range[PrimePi[nn]]]]^2] (* _Harvey P. Dale_, Jul 04 2013 *)
%Y A161753 Cf. A001248, A141468.
%K A161753 nonn,easy
%O A161753 1,3
%A A161753 _Juri-Stepan Gerasimov_, Jun 18 2009
%E A161753 Corrected and edited by _Omar E. Pol_, Jun 29 2009