The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  2  1  1  1  1  1  1  2  1  1  1  1  1  1  1 2a  1  1  1
 0  1  0  2  2 2a 2a^2+3 a^2+3a 3a^2+2a+3 2a  a 3a^2+2 2a^2+3a+1 a^2+3a+3 3a^2+2 2a^2+3a+1 3a^2+2a+3 2a^2+3  a a^2+3a+3 a^2+3a  1 a+2 2a^2+2a+3 3a^2+3 3a^2+2a+2 a^2+a a^2+3a+1 2a^2+3a+3 a+2  1 2a^2+2a+3 3a^2+2a+2 a^2+3a+1 2a^2+3a+3 3a^2+3 a^2+a  1 3a a^2+a+1 3a^2+1 2a^2+2a+1 3a^2+2a 2a^2+a+3 a^2+a+2  1 2a^2+3a+2  3 3a
 0  0  2 2a^2+2 2a^2+2a+2 2a^2 2a 2a+2 2a^2+2a 2a+2 2a 2a^2+2  2  0 2a^2+2a 2a 2a^2+2a+2 2a^2 2a^2+2 2a^2+2a  0  2 2a^2 2a+2  2 2a 2a^2+2a  2  0 2a^2+2a+2 2a^2 2a^2+2a 2a^2 2a+2 2a^2+2 2a^2 2a^2+2 2a 2a^2+2a 2a^2+2a+2 2a+2  0 2a+2 2a^2+2a+2 2a^2 2a^2+2a  2 2a^2+2  0

generates a code of length 49 over GR(64,4) who´s minimum homogenous weight is 332.

Homogenous weight enumerator: w(x)=1x^0+3360x^332+1680x^333+1176x^334+210x^336+6720x^340+2016x^341+784x^342+203x^344+11424x^348+3472x^349+1624x^350+77x^352+7x^376+14x^392

The gray image is a code over GF(8) with n=392, k=5 and d=332.
This code was found by Heurico 1.16 in 0.165 seconds.