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Search: id:A055138
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| 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, 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, 80, 288, -126, -50, 40, 0, -5, 1, -483, 1212
(list; table; graph; listen)
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OFFSET
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0,9
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COMMENT
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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
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EXAMPLE
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1; -1,1; 0,-1,1; 1,0,-2,1; -1,2,0,-2,1; ...
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CROSSREFS
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Sequence in context: A035192 A089062 A039980 this_sequence A155997 A123223 A088226
Adjacent sequences: A055135 A055136 A055137 this_sequence A055139 A055140 A055141
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KEYWORD
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sign,tabl
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AUTHOR
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Christian G. Bower (bowerc(AT)usa.net), May 09 2000
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