The generator matrix

 1  0  0  1  1  1  1  1  1  1  1  1  1  1 a^6*X  1  1
 0  1  0  1  a a^2 a^6*X+a^3 a^6*X+a^4 a^5 a^6 a^6*X a^6*X+1 X+a X+a^2  1 a^4 a*X
 0  0  1 a^6  a a^4  1 a^5 a^3 a^2 a^3*X+1 a*X+a^5 a^6*X a^5*X+a^2 X+a^6 X+1 a^5*X+a

generates a code of length 17 over F8[X]/(X^2) who´s minimum homogenous weight is 104.

Homogenous weight enumerator: w(x)=1x^0+35x^104+896x^105+5040x^106+1680x^107+5138x^112+12544x^113+30240x^114+5600x^115+39424x^119+34608x^120+43904x^121+72240x^122+10640x^123+77x^128+77x^136

The gray image is a linear code over GF(8) with n=136, k=6 and d=104.
This code was found by Heurico 1.16 in 2.37 seconds.