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%I #6 Aug 22 2017 20:53:10
%S 0,0,0,0,0,360,2520,48060,317520,4109040,12923136,238784940,559279980,
%T 7612394400,37864711260,246262998780,787758864480,13282478024760,
%U 27723264985920,387585094204260,1595144664454200
%N Number of primitive (aperiodic) step shifted (decimated) sequences using exactly six different symbols.
%C See A056371 for an explanation of step shifts.
%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)*A056380(n/d) where d|n.
%K nonn
%O 1,6
%A _Marks R. Nester_
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