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 A024712 #5 May 31 2013 00:32:12 %S A024712 1,2,2,1,0,0,1,2,1,0,1,2,2,0,1,2,1,0,0,2,2,0,2,2,1,0,0,1,0,1,2,1,1,2, %T A024712 1,0,1,2,0,0,2,1,0,0,1,2,2,1,0,1,2,0,1,2,0,0,2,2,1,1,0,1,2,2,2,1,1,2, %U A024712 2,0,2,1,0,1,2,0,1,1,1,2,0,0,2,2,0,2,2,1,0,2,0,1,1,0,1,0,0,0,2,0,1,2,1,0,2,0,1,2,1,0,1 %N A024712 a(n) = residue mod 3 of n-th term of A024702. %H A024712 Charles R Greathouse IV, <a href="/A024712/b024712.txt">Table of n, a(n) for n = 3..10000</a> %o A024712 (PARI) a(n)=prime(n)^2\24%3 \\ _Charles R Greathouse IV_, May 31 2013 %K A024712 nonn %O A024712 3,2 %A A024712 _Clark Kimberling_