Search: id:A011842
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%I A011842
%S A011842 0,0,0,0,1,2,5,8,14,21,30,41,55,71,91,113,140,170,204,242,
%T A011842 285,332,385,442,506,575,650,731,819,913,1015,1123,1240,
%U A011842 1364,1496,1636,1785,1942,2109,2284,2470,2665,2870,3085
%N A011842 [ n(n-1)(n-2)/24 ].
%p A011842 seq(floor(binomial(n,3)/4), n=0..43);# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), 
               Jan 12 2009]
%p A011842 seq(floor(binomial(n,3)/4) ,n=0..43);# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), 
               Jan 12 2009]
%Y A011842 A column of triangle A011847.
%Y A011842 Sequence in context: A022907 A006918 A165189 this_sequence A000094 A058578 
               A023674
%Y A011842 Adjacent sequences: A011839 A011840 A011841 this_sequence A011843 A011844 
               A011845
%K A011842 nonn
%O A011842 0,6
%A A011842 N. J. A. Sloane (njas(AT)research.att.com).

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