%I A078897
%S A078897 1,1,1,3,1,2,1,7,4,2,1,5,1,2,3,15,1,8,1,4,3,2,1,10,6,2,13,4,1,7,1,31,3,
%T A078897 2,5,17,1,2,3,9,1,6,1,4,10,2,1,22,8,12,3,4,1,26,5,9,3,2,1,14,1,2,10,63,
%U A078897 5,6,1,4,3,11,1,34,1,2,18,4,7,6,1,19,40,2,1,13,5,2,3,8,1,21,7,4,3,2,5
%N A078897 Number of times the greatest prime factor of n is a factor in all numbers 
               <=n; a(1)=1.
%C A078897 For n>1: a(n)=1 iff n is prime;
%C A078897 a(n)=A078896(n) iff n is a prime power (A000961).
%Y A078897 Cf. A006530, A078896, A078899.
%Y A078897 Sequence in context: A008296 A140185 A106790 this_sequence A011086 A103514 
               A016570
%Y A078897 Adjacent sequences: A078894 A078895 A078896 this_sequence A078898 A078899 
               A078900
%K A078897 nonn
%O A078897 1,4
%A A078897 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 12 2002