Search: id:A056522
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%I A056522
%S A056522 0,0,0,0,0,0,0,1,1,10,15,85,140,618,1050,4064
%N A056522 Number of primitive (period n) periodic palindromic structures using 
               exactly five different symbols.
%D A056522 M. R. Nester (1999). Mathematical investigations of some plant interaction 
               designs. PhD Thesis. University of Queensland, Brisbane, Australia.
%F A056522 A056516(n)-A056515(n).
%e A056522 For example, aaabbb is not a (finite) palindrome but it is a periodic 
               palindrome. Permuting the symbols will not change the structure. 
               This should be different from A056511.
%Y A056522 Cf. A056484.
%Y A056522 Sequence in context: A047189 A035407 A020139 this_sequence A056511 A166626 
               A114703
%Y A056522 Adjacent sequences: A056519 A056520 A056521 this_sequence A056523 A056524 
               A056525
%K A056522 nonn
%O A056522 1,10
%A A056522 Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

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