Search: id:A123798
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%I A123798
%S A123798 47,2944,256193,24607451,2555265136,278052511951
%N A123798 Number of ways to build a contiguous building with n LEGO blocks of size 
               1x6 on top of a fixed block of the same size.
%C A123798 The base block is not counted among the n and must be the only block 
               in the bottom layer of the building
%D A123798 M. Abrahamsen and S. Eilers, Efficient counting of LEGO buildings, in 
               preparation
%D A123798 B. Durhuus and S. Eilers, On the entropy of LEGO, arXiv:math.CO/0504039
%H A123798 S. Eilers, <a href="http://www.math.ku.dk/~eilers/lcounts.html">LEGO 
               counts</a>
%Y A123798 Sequence in context: A009991 A052463 A005148 this_sequence A104069 A141797 
               A101629
%Y A123798 Adjacent sequences: A123795 A123796 A123797 this_sequence A123799 A123800 
               A123801
%K A123798 nonn,hard
%O A123798 1,1
%A A123798 Soren Eilers (eilers(AT)math.ku.dk), Oct 29 2006

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