Search: id:A056429
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%I A056429
%S A056429 1,2,2,4,3,8,5,14,11,26,15,88,37,130,184,357,261,1346,805,3760,4434,
%T A056429 9758,8385,47462,33781,108330,138767,408376,331185,2251816,1155735
%N A056429 Step cyclic shifted sequence structures using a maximum of two different 
               symbols.
%C A056429 See A056371 for an explanation of step shifts. Under step cyclic shifts, 
               abcde, bdace, bcdea, cdeab and daceb etc. are equivalent. Permuting 
               the symbols will not change the structure.
%D A056429 M. R. Nester (1999). Mathematical investigations of some plant interaction 
               designs. PhD Thesis. University of Queensland, Brisbane, Australia.
%F A056429 Use de Bruijn's generalization of Polya's enumeration theorem as discussed 
               in reference.
%Y A056429 Cf. A002729.
%Y A056429 Sequence in context: A048676 A049287 A006799 this_sequence A133806 A005176 
               A050335
%Y A056429 Adjacent sequences: A056426 A056427 A056428 this_sequence A056430 A056431 
               A056432
%K A056429 nonn
%O A056429 1,2
%A A056429 Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

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