Extension:
[7,7,1] to [20,7,4]
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;

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

Start matrix
1 21 E
111000000000010000001
000000000000001000002
000000000000000100003
000000000000000010004
000000000000000001005
000000000000000000106
000000000000000000017
?7 20 4  _7 1
11100000000001000000
12333333333000100000
12312333333000010000
23100222333330001000
23100222333120000100
00000000123000000010
00000123000000000001
AUT: 89579520 $1z^{0}+15z^{4}+90z^{8}+4110z^{12}+11925z^{16}+243z^{20}  dd-3$\\
?7 20 4  _7 2
11100000000001000000
12333330000000100000
12312330000000010000
12300303330000001000
12300301230000000100
12300300003330000010
00000000001230000001
AUT: 2985984 $1z^{0}+12z^{4}+342z^{8}+3372z^{12}+12657z^{16}  dd-3$\\
?7 20 4  _7 3
11100000000001000000
12333330000000100000
12312330000000010000
12300303330000001000
12300301230000000100
00000000003330000010
00000000001230000001
AUT: 22394880 $1z^{0}+24z^{4}+306z^{8}+3408z^{12}+12645z^{16}  dd-3$\\
?7 20 4  _7 4
11100000000001000000
12333330000000100000
12312330000000010000
00000003330000001000
00000001230000000100
00000000003330000010
00000000001230000001
AUT: 447897600 $1z^{0}+36z^{4}+462z^{8}+3060z^{12}+12825z^{16}  dd-2$\\

DIFFERENT ENUMERATORS :4   ALL CODES: 4

    1 1 AUT: 89579520 $1z^{0}+15z^{4}+90z^{8}+4110z^{12}+11925z^{16}+243z^{20}  dd-3$\\
    2 1 AUT: 2985984 $1z^{0}+12z^{4}+342z^{8}+3372z^{12}+12657z^{16}  dd-3$\\
    3 1 AUT: 22394880 $1z^{0}+24z^{4}+306z^{8}+3408z^{12}+12645z^{16}  dd-3$\\
    4 1 AUT: 447897600 $1z^{0}+36z^{4}+462z^{8}+3060z^{12}+12825z^{16}  dd-2$\\