Code details

best found code with parameters
q=23 k=3 n=102
minimum distance = 96

this is new optimal code


the previous bounds were -1/96
this is a projective code


We used the prescribed group of automorphisms with the following generators


22 0 0
0 0 22
0 22 0

16 0 0
0 12 0
0 0 20

This group makes 39 orbits of sizes:

2 11 11 1 22 11 11 11 11 22 22 22 11 22 11 22 22 11 11 22 22 11 11 22 11 22 11 11 11 11 22 22 11 11 11 11 11 11 11


The solution of the corresponding linear system of equations was found after less than 100 seconds:

1 0 0 1 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2 5 6 2 5 2 2 6 6 6 5 6 6 2 6 2 6 6 6 5 1 4 2 2 5 6 2 4 5 1 6 6 4 6 5 5 6 0 6


This produces the following generator matrix

0 0 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22
0 22 0 22 2 16 4 18 6 10 20 14 8 12 22 2 16 4 1 18 19 6 10 3 9 20 14 21 17 8 7 12 15 5 13 11 1 19 3 9 21 17 7 15 5 13 11 1 19 3 9 21 17 7 15 5 13 11 22 2 16 4 1 18 19 6 10 3 9 20 14 21 17 8 7 12 15 5 13 11 22 2 16 4 18 6 10 20 14 8 12 22 2 16 4 18 6 10 20 14 8 12
22 0 0 16 14 22 12 20 10 6 18 2 8 4 15 13 21 11 14 19 18 9 5 12 6 17 1 16 20 7 8 3 22 10 2 4 7 11 5 21 9 13 1 15 3 17 19 13 17 11 5 15 19 7 21 9 1 3 3 1 9 21 2 7 6 19 15 22 16 5 11 4 8 17 18 13 10 20 12 14 22 20 6 18 4 16 12 2 8 14 10 18 16 2 14 22 12 8 20 4 10 6



Which is a code with the following weight distribution
1y102+5324x96y6+2662x97y5+726x98y4+2486x100y2+726x101y1+242x102