Search: id:A001841
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%I A001841 M2460 N0977
%S A001841 3,5,10,14,21,26,36,43,55,64,78,88,105,117,136,150,171,186,210,
%T A001841 227,253,272,300,320,351,373,406,430,465,490,528,555,595,624,666,696,741
%N A001841 Related to Zarankiewicz's problem.
%D A001841 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A001841 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A001841 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 A001841 R. K. Guy, A problem of Zarankiewicz, in P. Erd\"{o}s and G. Katona, 
               editors, Theory of Graphs (Proceedings of the Colloquium, Tihany, 
               Hungary), Academic Press, NY, 1968, pp. 119-150, (p. 126, divided 
               by 2).
%H A001841 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 A001841 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 A001841 A001841:=-(2*z**4+z**5+2*z**2+2*z**3+2*z+3)/(z**2-z+1)/(z**2+z+1)/(z+1)**2/
               (z-1)**3; [Conjectured by S. Plouffe in his 1992 dissertation.]
%Y A001841 Sequence in context: A137395 A001767 A048214 this_sequence A008610 A078411 
               A137630
%Y A001841 Adjacent sequences: A001838 A001839 A001840 this_sequence A001842 A001843 
               A001844
%K A001841 nonn
%O A001841 3,1
%A A001841 N. J. A. Sloane (njas(AT)research.att.com).

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