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 weighing matrices of order 12 and weight 6

A1* Type(E,E)
0 1 1 1 1 1 1 0 0 0 0 0
1 0 1 - - 1 0 1 0 0 0 0
1 1 0 1 - - 0 0 1 0 0 0

1 - 1 0 1 - 0 0 0 1 0 0
1 - - 1 0 1 0 0 0 0 1 0
1 1 - - 1 0 0 0 0 0 0 1

- 0 0 0 0 0 0 1 1 1 1 1
0 - 0 0 0 0 1 0 1 - - 1
0 0 - 0 0 0 1 1 0 1 - -

0 0 0 - 0 0 1 - 1 0 1 -
0 0 0 0 - 0 1 - - 1 0 1
0 0 0 0 0 - 1 1 - - 1 0

A2* Type(F,F)
0 1 1 0 1 - 0 1 0 0 1 0
1 0 1 1 - 0 1 0 0 1 0 0
1 1 0 - 0 1 0 0 1 0 0 1

0 - 1 0 1 1 0 0 1 0 0 -
- 1 0 1 0 1 0 1 0 0 - 0
1 0 - 1 1 0 1 0 0 - 0 0

0 - 0 0 0 - 0 1 1 0 - 1
- 0 0 0 - 0 1 0 1 - 1 0
0 0 - - 0 0 1 1 0 1 0 -

0 - 0 0 0 1 0 1 - 0 1 1
- 0 0 0 1 0 1 - 0 1 0 1
0 0 - 1 0 0 - 0 1 1 1 0

A3* Type (G,G)
0 1 - 0 1 1 1 0 0 1 0 0
1 - 0 1 0 1 0 1 0 0 1 0
- 1 0 1 1 0 0 0 1 0 0 1

0 - - 0 1 - 1 0 0 - 0 0
- 0 - 1 - 0 0 1 0 0 - 0
- - 0 - 0 1 0 0 1 0 0 -

- 0 0 - 0 0 0 1 - 0 1 1
0 - 0 0 - 0 1 - 0 1 0 1
0 0 - 0 0 - - 0 1 1 1 0

- 0 0 1 0 0 0 - - 0 1 -
0 - 0 0 1 0 - 0 - 1 - 0
0 0 - 0 0 1 - - 0 - 0 1

A4* Type (H,E)
1 1 1 1 1 1 0 0 0 0 0 0
1 1 1 - - - 0 0 0 0 0 0
1 - 0 1 - 0 1 1 0 0 0 0

1 - 0 - 1 0 1 - 0 0 0 0
1 0 - 0 0 0 1 0 1 - 0 1
1 0 - 0 0 0 - 0 - - - 0

0 1 - 0 0 0 1 0 1 - 0 1
0 1 - 0 0 0 1 0 - 1 0 -
0 0 0 1 0 - 0 - 1 0 - -

0 0 0 1 0 - 0 - - 0 1 1
0 0 0 0 1 - 0 1 0 1 - 1
0 0 0 0 1 - 0 1 0 - 1 -