Extension:
[7,7,1] to [21,7,4]
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--21;
Till dimension 2--21;
Till dimension 3--21;
Till dimension 4--21;
Till dimension 5--21;
Till dimension 6--21;
Till dimension 7--21;

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

Start matrix
1 22 E
1110000000000010000001
0000000000000001000002
0000000000000000100003
0000000000000000010004
0000000000000000001005
0000000000000000000106
0000000000000000000017
?7 21 4  _7 1
111000000000001000000
123333333330000100000
123123333330000010000
000001230000000001000
000000001230000000100
000000000003330000010
000000000001230000001
AUT: 1074954240 $1z^{0}+27z^{4}+234z^{8}+1686z^{12}+13221z^{16}+1215z^{20}  dd-3$\\
?7 21 4  _7 2
111000000000001000000
000333333300000100000
000333300033300010000
000330033033030001000
000303030330330000100
000300303303330000010
123000000000000000001
AUT: 696729600 $1z^{0}+15z^{4}+90z^{8}+2190z^{12}+12693z^{16}+1395z^{20}  dd-3$\\

DIFFERENT ENUMERATORS :2   ALL CODES: 2

    1 1 AUT: 1074954240 $1z^{0}+27z^{4}+234z^{8}+1686z^{12}+13221z^{16}+1215z^{20}  dd-3$\\
    2 1 AUT: 696729600 $1z^{0}+15z^{4}+90z^{8}+2190z^{12}+12693z^{16}+1395z^{20}  dd-3$\\