Code details
best found code with parameters
q=16 k=3 n=231
minimum distance = 216
this is new optimal code
the previous bounds were -1/216
this is a projective code
We used the prescribed group of automorphisms with the following generators
This group makes 13 orbits of sizes:
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The solution of the corresponding linear system of equations was found after less than 500 seconds:
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This produces the following generator matrix
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Which is a code with the following weight distribution
1y231+3465x216y15+630x220y11