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 A065203 #3 May 10 2013 12:44:54 %S A065203 0,1,1,2,1,1,2,1,2,1,2,2,2,1,2,2,1,2,2,1,2,1,3,1,2,2,2,1,2,2,1,2,1,2, %T A065203 3,2,1,2,2,2,2,2,1,2,2,2,2,2,2,1,2,3,2,2,3,2,1,2,3,2,1,2,2,1,2,2,1,2, %U A065203 2,3,2,2,2,1,2,1,3,2,2,2,1,2,3,2,2,2,2,2,1,2,2,2,2,2,3,2,3,2,2,1,2,3,3,2,2,2 %N A065203 Total number of primes (without multiplicity) dividing A064413(n). %Y A065203 Cf. A064413, A064742, A065204. %K A065203 nonn %O A065203 1,4 %A A065203 _Vladeta Jovovic_, Oct 21 2001