Search: id:A055138
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%I A055138
%S A055138 1,1,1,0,1,1,1,0,2,1,1,2,0,2,1,1,3,6,0,3,1,4,3,7,8,0,3,1,1,18,18,13,17,
%T A055138 0,4,1,19,4,56,28,22,20,0,4,1,31,127,60,136,98,34,36,0,5,1,120,163,511,
%U A055138 80,288,126,50,40,0,5,1,483,1212
%V A055138 1,-1,1,0,-1,1,1,0,-2,1,-1,2,0,-2,1,-1,-3,6,0,-3,1,4,-3,-7,8,0,-3,1,
%W A055138 -1,18,-18,-13,17,0,-4,1,-19,-4,56,-28,-22,20,0,-4,1,31,-127,60,136,
%X A055138 -98,-34,36,0,-5,1,120,163,-511,80,288,-126,-50,40,0,-5,1,-483,1212
%N A055138 Matrix inverse of Losanitsch's triangle A034581.
%C A055138 Also the adjoint matrix of Losanitsch's triangle, since the determinants 
               of n X n subarrays, rooted at (0,0), of Losanitsch's triangle are 
               1 and since for a matrix A, A^(-1) = 1/det(A) * (adjoint of A). - 
               Gerald McGarvey (gerald.mcgarvey(AT)comcast.net), Oct 30 2007
%e A055138 1; -1,1; 0,-1,1; 1,0,-2,1; -1,2,0,-2,1; ...
%Y A055138 Sequence in context: A035192 A089062 A039980 this_sequence A155997 A123223 
               A088226
%Y A055138 Adjacent sequences: A055135 A055136 A055137 this_sequence A055139 A055140 
               A055141
%K A055138 sign,tabl
%O A055138 0,9
%A A055138 Christian G. Bower (bowerc(AT)usa.net), May 09 2000

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