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 A175352 #5 Jan 26 2013 13:32:31 %S A175352 1,6,10,12,14,18,22,24,26,28,30,34,36,38,40,45,46,48,52,54,56,58,62, %T A175352 63,66,70,72,74,75,76,80,82,84,86,88,90,94,96,98,99,100 %N A175352 Numbers such that arithmetic mean of all prime factors is not an integer. %C A175352 Complement of A078175. %e A175352 For a(13) = 36: 36 = 2*2*3*3; (2+2+3+3)/4 is not integer. %K A175352 nonn %O A175352 1,2 %A A175352 _Jaroslav Krizek_, Apr 20 2010