Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A055138
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A055138 Matrix inverse of Losanitsch's triangle A034581. +0
3
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)
OFFSET

0,9

COMMENT

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

EXAMPLE

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

CROSSREFS

Sequence in context: A035192 A089062 A039980 this_sequence A155997 A123223 A088226

Adjacent sequences: A055135 A055136 A055137 this_sequence A055139 A055140 A055141

KEYWORD

sign,tabl

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), May 09 2000

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


AT&T Labs Research