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 A145019 #3 Mar 30 2012 16:51:01 %S A145019 1,2,6,4,10,6,20,14,30,24,40,36,10,30,56,44,70,66,26,90,84,14,30,104, %T A145019 60,16,130,126,80,34,156,154,144,90,136,126,170,114,20,60,210,204,140, %U A145019 84,190,110,220,210,266,260,24,184,120,306,304,100,286,150,276,26,130,330,54,234 %N A145019 A002330(n)*A002331(n). %Y A145019 Apart from initial term, twice A070151, or half A145046. %K A145019 nonn %O A145019 0,2 %A A145019 _N. J. A. Sloane_, Feb 25 2009