Search: id:A060764
Results 1-1 of 1 results found.

%I A060764
%S A060764 1,1,2,1,2,2,2,1,3,2,2,3,2,2,4,1,2,3,2,2,4,2,2,4,3,2,4,2,2,4,2,1,4,2,4,
%T A060764 4,2,2,4,4,2,4,2,2,6,2,2,5,3,3,4,2,2,4,4,4,4,2,2,5,2,2,6,1,4,4,2,2,4,5,
%U A060764 2,6,2,2,6,2,4,4,2,5,5,2,2,7,4,2,4,2,2,6,4,2,4,2,4,6,2,3,6,3,2,4,2,2,8
%N A060764 Number of divisors of n which are not also differences between consecutive 
               divisors (ordered by increasing magnitude) of n.
%e A060764 For n=70, divisors={1,2,5,7,10,14,35,70}; differences={1,3,2,3,4,21,35}; 
               the divisors {5,7,10,14,70} are not differences, so a(70)=5.
%t A060764 a[n_] := Length[Complement[d=Divisors[n], Drop[d, 1]-Drop[d, -1]]]
%Y A060764 Cf. A000005, A060741, A060763.
%Y A060764 Sequence in context: A035164 A023588 A001227 this_sequence A105149 A068307 
               A158946
%Y A060764 Adjacent sequences: A060761 A060762 A060763 this_sequence A060765 A060766 
               A060767
%K A060764 nonn
%O A060764 1,3
%A A060764 Labos E. (labos(AT)ana.sote.hu), Apr 24 2001
%E A060764 Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Jan 22 2002

Search completed in 0.001 seconds