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%I #10 Aug 22 2017 20:53:10
%S 0,0,0,0,1,9,26,299,1183,10701,24736,349241,626053,6680979,26364610,
%T 137247254,353304459,4826418027,8199440662,93679529503,315943737331,
%U 1913783074461,4382586624256,60629067776483
%N Number of step shifted (decimated) sequence structures using exactly 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 A056394(n)-A056393(n).
%Y Column 5 of A288620.
%Y Cf. A056379.
%K nonn
%O 1,6
%A _Marks R. Nester_
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