%I #3 Oct 15 2013 22:32:34
%S 2,3,3,3,4,3,3,4,3,3,5,3,4,5,3,3,4,4,3,5,3,3,6,3,4,4,3,5,6,3,3,6,4,3,
%T 5,3,3,5,4,3,6,3,6,4,3,4,5,4,3,6,3,3,7,3,3,6,3,6,7,4,4,4,5,3,7,3,5,7,
%U 3,3,5,4,5,7,3,3,7,5,3,6,4,3,7,3,4,7,3,6,4,3,3,7,4,6,7,3,3,7,3,3,6,5,7,6,4
%N Number of distinct terms in iteration-list when cototient-function[=A051953] is iterated and the initial value is odd number.
%C Seems smaller than A053475[2n]=A098200[n]
%F a[n]=A053475[ -1+2n]
%Y Cf. A051953, A053475, A098200.
%K nonn
%O 1,1
%A _Labos Elemer_, Sep 22 2004