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A055138 Matrix inverse of Losanitsch's triangle A034581. 2
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; refs; listen; history; text; internal format)
OFFSET

0,9

COMMENTS

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, Oct 30 2007

LINKS

Table of n, a(n) for n=0..67.

EXAMPLE

1; -1,1; 0,-1,1; 1,0,-2,1; -1,2,0,-2,1; ...

CROSSREFS

Sequence in context: A282634 A039980 A194529 * A177717 A155997 A123223

Adjacent sequences:  A055135 A055136 A055137 * A055139 A055140 A055141

KEYWORD

sign,tabl

AUTHOR

Christian G. Bower, May 09 2000

STATUS

approved

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Last modified November 17 18:42 EST 2018. Contains 317276 sequences. (Running on oeis4.)