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 A072596 #17 Jul 12 2024 02:43:16 %S A072596 70,280,630,646,1120,1750,1798,2145,2520,2584,3430,3526,4480,5670, %T A072596 5814,5865,6006,7000,7192,8470,8580,9177,10080,10336,11305,11830, %U A072596 13110,13720,14104,15750,16150,16182,16422,17920,19305,20230,20553,20806 %N A072596 Nonsquares with A072594(n) = 0. %C A072596 A010052(a(n)) = 0. - _Reinhard Zumkeller_, Nov 17 2012 %H A072596 Reinhard Zumkeller and Charles R Greathouse IV, <a href="/A072596/b072596.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from Zumkeller) %o A072596 (Haskell) %o A072596 a072596 n = a072596_list !! (n-1) %o A072596 a072596_list = filter ((== 0) . a010052) a072595_list %o A072596 -- _Reinhard Zumkeller_, Nov 17 2012 %o A072596 (PARI) is(n)=if(issquare(n), return(0)); my(f=factor(n), t); for(i=1, #f~, if(f[i, 2]%2, t=bitxor(t, f[i, 1]))); t==0 \\ _Charles R Greathouse IV_, Aug 28 2016 %Y A072596 Cf. A072595. %K A072596 nonn %O A072596 1,1 %A A072596 _Reinhard Zumkeller_, Jun 23 2002