%I A060481
%S A060481 1,0,1,0,3,2,9,0,28,24,93,20,315,288,1091,0,3855
%N A060481 Number of orbits of length n in map whose periodic points come from A059991.
%D A060481 V. Chothi, G. Everest, T. Ward. S-integer dynamical systems: periodic 
               points. J. Reine Angew. Math., 489 (1997), 99-132.
%D A060481 T. Ward. Almost all S-integer dynamical systems have many periodic points. 
               Erg. Th. Dynam. Sys. 18 (1998), 471-486.
%F A060481 If b(n) is the n-th term of A059991, then a(n)=(1/n)* Sum_{d|n}\mu(d)a(n/
               d)
%Y A060481 A059991.
%Y A060481 Sequence in context: A047946 A066045 A110866 this_sequence A010271 A143074 
               A104005
%Y A060481 Adjacent sequences: A060478 A060479 A060480 this_sequence A060482 A060483 
               A060484
%K A060481 easy,nonn
%O A060481 1,5
%A A060481 Thomas Ward (t.ward(AT)uea.ac.uk)