The generator matrix

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

generates a code of length 19 over GR(64,4) who´s minimum homogenous weight is 119.

Homogenous weight enumerator: w(x)=1x^0+840x^119+5446x^120+3360x^121+2240x^126+11760x^127+32480x^128+11200x^129+39424x^133+15680x^134+41160x^135+77161x^136+21280x^137+35x^144+77x^152

The gray image is a code over GF(8) with n=152, k=6 and d=119.
This code was found by Heurico 1.16 in 2.62 seconds.