|
%I #6 Aug 22 2017 20:53:11
%S 1,1,3,9,17,111,156,1099,3072,21789,42334,528487,859501,8546878,
%T 31968376,159715435,398048505,5303677376,8835749346,99411964817,
%U 331215913868,1987084087016,4515860983384,62095480510303
%N Number of primitive (aperiodic) step shifted (decimated) sequence structures using a maximum of five different symbols.
%C See A056371 for an explanation of step shifts. Permuting the symbols will not change the structure.
%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)*A056394(n/d) where d|n.
%Y Cf. A056384.
%K nonn
%O 1,3
%A _Marks R. Nester_
|
