Code details

best found code with parameters
q=13 k=3 n=145
minimum distance = 133

this is new optimal code


the previous bounds were -1/133
this is a projective code


We used the prescribed group of automorphisms with the following generators


0 0 12
12 0 0
0 12 0

9 0 0
0 3 0
0 0 9

This group makes 21 orbits of sizes:

3 6 4 12 12 12 12 12 12 12 12 6 12 4 12 6 12 4 6 6 6


The solution of the corresponding linear system of equations was found after less than 10 seconds:

1 1 0 1 1 1 1 1 0 1 1 1 1 0 0 0 1 1 1 1 1 12 12 10 10 11 12 12 12 12 11 11 12 9 12 12 12 12 4 9 10 12


This produces the following generator matrix

0 0 12 0 0 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 0 0 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 0 0 12 12 12 12 0 0 12 12 12 12 0 0 12 12 12 12
0 12 0 12 12 0 0 12 6 12 12 1 1 5 5 11 11 7 7 6 6 12 12 4 4 2 2 8 8 10 10 6 6 12 12 4 4 2 2 8 8 10 10 6 6 12 12 9 9 9 9 3 3 3 3 6 6 12 12 1 1 5 5 11 11 7 7 6 6 1 1 1 1 4 4 10 10 7 7 7 7 1 1 2 2 9 9 3 3 8 8 7 7 12 12 0 0 1 7 4 4 9 9 5 5 11 11 3 3 10 10 2 2 5 5 5 5 11 11 11 11 8 8 2 2 8 8 12 12 0 0 2 8 12 12 0 0 9 3 12 12 0 0 5 11
12 0 0 12 6 12 6 0 0 1 7 12 6 5 11 5 11 12 6 1 7 4 10 12 6 2 8 2 8 12 6 4 10 2 8 4 10 12 6 12 6 4 10 2 8 9 3 12 9 3 6 12 9 3 6 9 3 5 11 1 7 12 6 12 6 1 7 5 11 2 5 11 8 5 11 5 11 2 5 11 8 9 3 5 11 4 10 4 10 5 11 9 3 1 7 5 11 0 0 1 7 2 8 9 3 9 3 2 8 1 7 1 7 1 4 10 7 1 4 10 7 1 7 4 10 4 10 2 8 4 10 0 0 9 3 9 3 0 0 5 11 1 7 0 0



Which is a code with the following weight distribution
1y145+1236x133y12+432x134y11+264x135y10+216x136y9+48x141y4