%I #7 Aug 22 2017 20:53:10
%S 0,0,0,0,0,360,2520,48060,317520,4109040,12923136,238785300,559279980,
%T 7612396920,37864711260,246263046840,787758864480,13282478342640,
%U 27723264985920,387585098313300,1595144664456720
%N Number of 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 A056375(n)-6*A056374(n)+15*A056373(n)-20*A056372(n)+15*A056371(n)-6.
%Y Cf. A056375.
%K nonn
%O 1,6
%A _Marks R. Nester_