The generator matrix

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

generates a code of length 24 over F8[X]/(X^2) who´s minimum homogenous weight is 154.

Homogenous weight enumerator: w(x)=1x^0+168x^154+4536x^155+10752x^156+224x^160+448x^161+2352x^162+27216x^163+35840x^164+36029x^168+3136x^169+8232x^170+65016x^171+68096x^172+21x^176+7x^184+70x^192

The gray image is a linear code over GF(8) with n=192, k=6 and d=154.
This code was found by Heurico 1.16 in 3.46 seconds.