%I A077890
%S A077890 1,1,0,2,1,3,6,0,11,11,12,34,11,57,78,36,193,121,264,506,23,1035,990,1080,
%T A077890 3059,899,5220,7018,3421,17457,10614,24300,45529,3071,94128,87986,100271,
%U A077890 276243,75702,476784,628187,325381,1581756,930994,2232517,4094505,370530
%V A077890 1,1,0,-2,-1,3,6,0,-11,-11,12,34,11,-57,-78,36,193,121,-264,-506,23,1035,
               990,-1080,
%W A077890 -3059,-899,5220,7018,-3421,-17457,-10614,24300,45529,-3071,-94128,-87986,
               100271,
%X A077890 276243,75702,-476784,-628187,325381,1581756,930994,-2232517,-4094505,
               370530
%N A077890 Expansion of (1-x)^(-1)/(1+x^2+2*x^3).
%Y A077890 Sequence in context: A144057 A143581 A096871 this_sequence A077877 A144867 
               A081520
%Y A077890 Adjacent sequences: A077887 A077888 A077889 this_sequence A077891 A077892 
               A077893
%K A077890 sign
%O A077890 0,4
%A A077890 N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002