The generator matrix

 1  0  1  1  1  1  1  1  0
 0  1  1  a a^6*X+a^2 a^3 a^6*X+a^4  a  1
 0  0 a^6*X  0  X  X a^6*X a^3*X a^4*X
 0  0  0  X a^6*X a*X a*X a^6*X a^2*X

generates a code of length 9 over F8[X]/(X^2) who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+588x^48+896x^49+18424x^56+12544x^57+57344x^63+127267x^64+43904x^65+1176x^72

The gray image is a linear code over GF(8) with n=72, k=6 and d=48.
This code was found by Heurico 1.16 in 0.621 seconds.