Extension:
[8,8,1] to [20,8,4]
Number of the matrices for extension:1
{self-orthogonal  no}
Number of ones  to add in the first row in the generator matrix of the codes: 3

Weights:
4 8 12 16 20 
Maximal number for proportional coordinates in the output codes:Till dimension 1--20;
Till dimension 2--20;
Till dimension 3--20;
Till dimension 4--20;
Till dimension 5--20;
Till dimension 6--20;
Till dimension 7--20;
Till dimension 8--20;

 The minimum distance of the dual codes is:
2
========================

Start matrix
1 21 E
111000000000100000001
000000000000010000002
000000000000001000003
000000000000000100004
000000000000000010005
000000000000000001006
000000000000000000107
000000000000000000018
?8 20 4  _8 1
11100000000010000000
12300000000001000000
00033300000000100000
00012300000000010000
00000033300000001000
00000012300000000100
00000000033300000010
00000000012300000001
AUT: 403107840000 $1z^{0}+60z^{4}+1350z^{8}+13500z^{12}+50625z^{16}  dd-3$\\

DIFFERENT ENUMERATORS :1   ALL CODES: 1

    1 1 AUT: 403107840000 $1z^{0}+60z^{4}+1350z^{8}+13500z^{12}+50625z^{16}  dd-3$\\