|
%I #9 Aug 22 2017 20:53:08
%S 1,1,2,5,11,39,125,532,2301,11010,54681,284023,1509851,8194902,
%T 45080652,250641356,1404374247,7917209005,44848645457,255055220735,
%U 1455247360000,8326191235902,47752990403133
%N Number of primitive (period n) n-bead necklace structures using a maximum of six different colored beads.
%C Turning over the necklace is not allowed. Colors may be permuted without changing the necklace structure.
%C a(n) = A107424(n, 1)+A107424(n, 2)+...+A107424(n, 6). - _David Wasserman_, May 31 2005
%D M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]
%F sum mu(d)*A056294(n/d) where d|n and n>0.
%Y Cf. A032164.
%K nonn
%O 1,3
%A _Marks R. Nester_
|
