Search: id:A056409
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%I A056409
%S A056409 0,0,0,0,1,9,26,299,1183,10700,24736,349232,626053,6680953,26364609,
%T A056409 137246955,353304459,4826416835,8199440662,93679518802,315943737305,
%U A056409 1913783049725,4382586624256,60629067426943
%N A056409 Number of primitive (aperiodic) step shifted (decimated) sequence structures 
               using exactly five different symbols.
%C A056409 See A056371 for an explanation of step shifts. Permuting the symbols 
               will not change the structure.
%D A056409 M. R. Nester (1999). Mathematical investigations of some plant interaction 
               designs. PhD Thesis. University of Queensland, Brisbane, Australia.
%F A056409 A056404(n)-A056403(n).
%Y A056409 Cf. A056389.
%Y A056409 Sequence in context: A048771 A055849 A084813 this_sequence A056399 A135864 
               A074954
%Y A056409 Adjacent sequences: A056406 A056407 A056408 this_sequence A056410 A056411 
               A056412
%K A056409 nonn
%O A056409 1,6
%A A056409 Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

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