Search: id:A003230
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%I A003230 M3417
%S A003230 1,4,11,28,67,152,335,724,1539,3232,6727,13900,28555,58392,118959,
%T A003230 241604,489459,989520,1997015,4024508,8100699,16289032,32726655,
%U A003230 65705268,131837763,264399936,530028199,1062139180,2127809963
%N A003230 Expansion of 1/((1-x)*(1-2x)*(1-x-2x^3)).
%D A003230 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A003230 S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques 
               Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 
               1992.
%D A003230 D. E. Daykin and S. J. Tucker, Introduction to Dragon Curves. Unpublished, 
               1976.
%H A003230 S. Plouffe, <a href="http://www.lacim.uqam.ca/%7Eplouffe/articles/MasterThesis.pdf">
               Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures</
               a>, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 
               1992.
%H A003230 S. Plouffe, <a href="http://www.lacim.uqam.ca/%7Eplouffe/articles/FonctionsGeneratrices.pdf">
               1031 Generating Functions and Conjectures</a>, Universit\'{e} du 
               Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
%p A003230 A003230:=-1/(z-1)/(2*z-1)/(-1+z+2*z**3); [Conjectured by S. Plouffe in 
               his 1992 dissertation.]
%Y A003230 Sequence in context: A090539 A113478 A056601 this_sequence A099326 A127985 
               A005409
%Y A003230 Adjacent sequences: A003227 A003228 A003229 this_sequence A003231 A003232 
               A003233
%K A003230 nonn,easy
%O A003230 0,2
%A A003230 N. J. A. Sloane (njas(AT)research.att.com).
%E A003230 More terms from James A. Sellers (sellersj(AT)math.psu.edu), Aug 21 2000

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