Search: id:A008577
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%I A008577
%S A008577 1,4,9,17,28,41,57,76,97,121,148,177,209,244,281,321,
%T A008577 364,409,457,508,561,617,676,737,801,868,937,1009,1084,
%U A008577 1161,1241,1324,1409,1497,1588,1681,1777,1876,1977,2081
%N A008577 Crystal ball sequence for planar net 4.8.8.
%D A008577 Meier and Moeck, Topology of 3-D 4-connected nets ..., J. Solid State 
               Chem 27 1979 349-355, esp. p. 351.
%H A008577 T. D. Noe, <a href="b008577.txt">Table of n, a(n) for n=0..1000</a>
%H A008577 <a href="Sindx_Cor.html#crystal_ball">Index entries for crystal ball 
               sequences</a>
%F A008577 G.f.: [(1+x)^2(1+x^2)]/[(1-x)^3(1+x+x^2)]. - R. Stephan, Apr 24 2004
%Y A008577 Sequence in context: A033617 A033613 A033608 this_sequence A033605 A008137 
               A008023
%Y A008577 Adjacent sequences: A008574 A008575 A008576 this_sequence A008578 A008579 
               A008580
%K A008577 nonn,easy,nice
%O A008577 0,2
%A A008577 N. J. A. Sloane (njas(AT)research.att.com).

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