From cxq01@nepthys.cs.uow.edu.au Thu Nov 25 14:02:01 1999 +1100 From: Cheng Xin Qu and Jooyeon Cho

Data from:
Hiroyuki Ohmori
On the classifications of weighing matrices of order 12.
The Journal of Combinatorial Mathematics and Combinatorial
Computing,Volume 5 April, 1989.

Classifications of 9 weighing matrices of order 12 and weight 9

A1
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
0 - 1 - 1 - 0 0 1 1 1 1
- 0 - 1 - 1 0 0 1 1 1 1
1 - 0 1 0 0 1 - - - 1 1
- 1 1 0 0 0 - 1 - - 1 1
1 - 0 0 0 1 - 1 - 1 - 1
- 1 0 0 1 0 1 - - 1 - 1
0 0 1 - - 1 0 - 1 - - 1
0 0 - 1 1 - - 0 1 - - 1

A2
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
- 0 0 0 1 - 1 - 1 1 1 1
0 - 0 0 - 1 - 1 1 1 1 1
0 0 1 0 1 - - 1 - - 1 1
0 0 0 1 - 1 1 - - - 1 1
1 - - 1 1 0 0 0 - 1 - 1
- 1 1 - 0 1 0 0 - 1 - 1
- 1 - 1 0 0 - 0 1 - - 1
1 - 1 - 0 0 0 - 1 - - 1

A3
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
- 0 0 0 1 - - 1 1 1 1 1
- 0 0 1 0 1 1 - - 1 1 1
1 - - 1 - 0 0 0 1 - 1 1
0 1 - - - 0 1 0 1 1 - 1
1 - 0 0 0 1 - 1 - 1 - 1
- 0 1 0 0 1 - - 1 - - 1
0 1 - 1 1 - 0 0 - - - 1

A4
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
- 0 0 0 1 - - 1 1 1 1 1
1 - 0 0 - 1 0 1 - 1 1 1
- 0 1 0 - 1 0 - 1 - 1 1
0 1 - 1 0 - 1 0 - - 1 1
0 1 - - - 0 1 0 1 1 - 1
- 0 0 1 1 1 0 - - 1 - 1
1 - - 1 0 0 - 0 1 - - 1
0 1 1 - 0 0 - 1 - - - 1

A5
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
- 1 0 - 0 - 0 1 1 1 1 1
1 - - 1 0 0 0 1 - 1 1 1
0 - 1 0 - 1 - 0 1 - 1 1
- 1 0 1 0 0 1 - - - 1 1
0 0 - 0 - 1 1 - 1 1 - 1
- 0 1 0 1 1 - 0 - 1 - 1
0 0 - 1 1 - - 0 1 - - 1
1 1 0 - - 0 0 1 - - - 1

A6
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
- 1 0 - 0 - 0 1 1 1 1 1
- 0 0 1 0 1 1 - - 1 1 1
0 - 1 0 - 1 - 0 1 - 1 1
1 0 - 1 0 - 0 1 - - 1 1
0 - - 1 1 0 - 0 1 1 - 1
1 0 0 - - 1 0 1 - 1 - 1
0 1 - 0 - 0 1 - 1 - - 1
- 1 1 0 1 0 - 0 - - - 1

A7
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
- 1 0 - 0 - 0 1 1 1 1 1
1 - 0 0 - 1 0 1 - 1 1 1
0 0 - 1 - 0 1 - 1 - 1 1
- 0 1 1 1 0 - 0 - - 1 1
0 - - 1 1 0 - 0 1 1 - 1
- 1 0 0 0 1 1 - - 1 - 1
0 0 1 - - 1 - 0 1 - - 1
1 1 - 0 0 - 0 1 - - - 1

A8
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
1 - - 0 - 0 0 1 1 1 1 1
- 1 1 - 0 0 0 1 - 1 1 1
- 0 0 1 1 - - 0 1 - 1 1
0 0 0 1 - 1 1 - - - 1 1
- 1 - 0 0 0 1 - 1 1 - 1
0 - 0 1 1 1 - 0 - 1 - 1
0 0 1 - - 1 - 0 1 - - 1
1 1 - 0 0 - 0 1 - - - 1

A9
1 1 1 1 1 1 1 1 1 0 0 0
1 1 1 1 - - - - 0 1 0 0
1 1 - - 1 1 - - 0 0 1 0
1 - 1 - 1 - 1 - 0 0 0 1
1 - - 0 - 0 0 1 1 1 1 1
- 0 0 1 0 1 1 - - 1 1 1
- 0 0 1 1 - - 0 1 - 1 1
0 1 1 - - 0 0 1 - - 1 1
- 0 1 - 0 1 - 0 1 1 - 1
0 1 - 0 1 - 0 1 - 1 - 1
0 1 - 0 - 0 1 - 1 - - 1
1 - 0 1 0 1 - 0 - - - 1