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 A176342 #3 Mar 30 2012 18:40:08 %S A176342 1,1,2,4,2,6,4,4,10,4,12,6,8,16,6,18,8,12,10,22,12,18,12,28,30,16,20, %T A176342 16,24,36,18,24,40,42,20,24,22,46,16,20,32,24,52,40,36,28,58,16,60,30, %U A176342 36,48,66,32,44,70,24,72,36,40,36,60,78,32,40,82,24,64,42,56,88,24,72,44 %N A176342 Phi(A166546(n)). %Y A176342 Cf. A000010, A166546. %K A176342 nonn %O A176342 1,3 %A A176342 _Giovanni Teofilatto_, Apr 15 2010 %E A176342 Corrected (an early 2 removed, a 24 replaced by 36) by _R. J. Mathar_, Apr 22 2010