%I A078050
%S A078050 1,2,0,4,4,4,12,4,20,28,12,68,44,92,180,4,364,356,372,1084,340,1828,2508,
%T A078050 1148,6164,3868,8460,16196,724,33116,31668,34564,97900,28772,167028,224572,
%U A078050 109484,558628,339660,777596,1456916,98276,3012108,2815556,3208660,8839772
%V A078050 1,-2,0,4,-4,-4,12,-4,-20,28,12,-68,44,92,-180,-4,364,-356,-372,1084,-340,
               -1828,2508,
%W A078050 1148,-6164,3868,8460,-16196,-724,33116,-31668,-34564,97900,-28772,-167028,
               224572,
%X A078050 109484,-558628,339660,777596,-1456916,-98276,3012108,-2815556,-3208660,
               8839772
%N A078050 Expansion of (1-x)/(1+x+2*x^2).
%C A078050 INVERTi transform of A005408, (2n + 1) = A078050 signed: (1, 2, 0, -4, 
               -4, 4, 12, 4, -20, -28,...) = left border of triangle A144106. [From 
               Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 11 2008]
%Y A078050 A005408, A144106 [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 11 
               2008]
%Y A078050 Sequence in context: A004174 A049797 A116578 this_sequence A134271 A094403 
               A166085
%Y A078050 Adjacent sequences: A078047 A078048 A078049 this_sequence A078051 A078052 
               A078053
%K A078050 sign
%O A078050 0,2
%A A078050 N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002