Search: id:A034852
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%I A034852
%S A034852 0,0,0,0,1,0,0,1,1,0,0,2,2,2,0,0,2,4,4,2,0,0,3,6,10,6,3,0,0,3,9,16,16,
%T A034852 9,3,0,0,4,12,28,32,28,12,4,0,0,4,16,40,60,60,40,16,4,0,0,5,20,60,100,
%U A034852 126,100,60,20,5,0,0,5,25,80,160,226,226,160,80,25,5,0,0,6,30,110,240
%N A034852 Rows of (Pascal's triangle - Losanitsch's triangle) (n >= 0, k >= 0).
%C A034852 Also number of linear unbranched n-4-catafusenes of C_{2v} symmetry.
%C A034852 Number of n-bead black-white reversible strings with k black beads; also 
               binary grids; string is not palindromic. - Yosu Yurramendi (yosu.yurramendi(AT)ehu.es), 
               Aug 08 2008
%C A034852 The first seven columns are A004526, A002620, A006584, A032091, A032092, 
               A032093, A032094. Row sums give A141447. - Yosu Yurramendi (yosu.yurramendi(AT)ehu.es), 
               Aug 08 2008
%D A034852 S. J. Cyvin et al., Unbranched catacondensed polygonal systems containing 
               hexagons and tetragons, Croatica Chem. Acta, 69 (1996), 757-774.
%D A034852 S. M. Losanitsch, Die Isomerie-Arten bei den Homologen der Paraffin-Reihe, 
               Chem. Ber. 30 (1897), 1917-1926.
%H A034852 N. J. A. Sloane, <a href="classic.html#LOSS">Classic Sequences</a>
%F A034852 Equals (A007318-A051159)/2. - Yosu Yurramendi (yosu.yurramendi(AT)ehu.es), 
               Aug 08 2008
%e A034852 0; 0 0; 0 1 0; 0 1 1 0; 0 2 2 2 0; 0 2 4 4 2 0; ...
%Y A034852 Cf. A007318, A034851, A051159.
%Y A034852 Essentially the same as A034877.
%Y A034852 Sequence in context: A089789 A004541 A037864 this_sequence A112790 A110857 
               A108867
%Y A034852 Adjacent sequences: A034849 A034850 A034851 this_sequence A034853 A034854 
               A034855
%K A034852 nonn,tabl,easy,nice
%O A034852 0,12
%A A034852 N. J. A. Sloane (njas(AT)research.att.com).
%E A034852 More terms from James A. Sellers (sellersj(AT)math.psu.edu), May 04 2000

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