Code details

best found code with parameters
q=16 k=3 n=78
minimum distance = 72

this is new optimal code


the previous bounds were -1/72
this is a projective code


We used the prescribed group of automorphisms with the following generators


12 0 0
0 11 0
0 0 7

7 0 0
0 9 0
0 0 5

This group makes 9 orbits of sizes:

1 1 15 1 15 15 75 75 75


The solution of the corresponding linear system of equations was found after less than 500 seconds:

1 1 0 1 0 0 1 0 0 2 2 6 2 6 6 6 6 2


This produces the following generator matrix

0 0 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
0 15 0 1 1 1 1 1 8 8 8 8 8 14 14 14 14 14 4 4 4 4 4 5 5 5 5 5 7 7 7 7 7 9 9 9 9 9 2 2 2 2 2 13 13 13 13 13 10 10 10 10 10 3 3 3 3 3 11 11 11 11 11 6 6 6 6 6 12 12 12 12 12 15 15 15 15 15
15 0 0 9 3 6 12 15 8 14 5 2 11 8 14 5 2 11 9 3 6 12 15 8 14 5 2 11 9 3 6 12 15 1 4 7 13 10 8 14 5 2 11 9 3 6 12 15 9 3 6 12 15 1 4 7 13 10 8 14 5 2 11 1 4 7 13 10 1 4 7 13 10 1 4 7 13 10



Which is a code with the following weight distribution
1y78+2925x72y6+1170x76y2