The generator matrix

 1  1  1  1  1  1  1  1  1  1  2  0  1  1  2  0  1  1  2  1  1  0  1  1  2  1  1  0  2  1  1  2  0  1  2  1
 0  2  0  6  0  6  0  6  0  6  2  2  4  6  6  2  0  6  6  0  6  2  0  6  6  6  0  2  6  0  6  0  2  4  6  0
 0  0  4  0  0  0  0  0  0  0  0  0  4  0  0  0  4  0  4  4  4  0  4  0  0  4  0  0  0  0  0  4  4  4  4  0
 0  0  0  4  0  0  0  0  0  0  0  0  0  4  0  0  0  4  4  4  0  0  4  4  4  4  4  0  0  4  4  4  4  0  0  0
 0  0  0  0  4  0  0  0  0  0  0  0  4  0  0  4  4  4  0  0  0  4  4  4  4  4  0  0  4  4  4  4  4  4  4  4
 0  0  0  0  0  4  0  0  0  0  0  0  0  4  0  4  4  0  0  4  4  0  0  4  4  4  0  0  4  4  0  4  0  0  4  4
 0  0  0  0  0  0  4  0  0  0  0  0  4  0  4  0  0  4  4  0  4  0  4  4  0  0  0  4  4  4  4  0  0  0  4  4
 0  0  0  0  0  0  0  4  0  0  0  0  0  4  4  0  4  4  4  0  0  4  4  0  0  4  4  4  4  4  0  4  4  0  4  0
 0  0  0  0  0  0  0  0  4  0  0  0  4  0  4  4  0  0  4  4  0  0  0  4  4  4  0  4  4  4  0  4  0  4  0  0
 0  0  0  0  0  0  0  0  0  4  0  0  0  4  4  4  0  0  4  4  4  0  4  0  0  0  4  0  4  0  4  4  0  4  0  4
 0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  4  4  4  4  4  4  4  4  4  4  4  0
 0  0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  4  4  4  4  4  0  4  0  4  0  4  4  0  0  4  4

generates a code of length 36 over Z8 who´s minimum homogenous weight is 24.

Homogenous weight enumerator: w(x)=1x^0+201x^24+58x^26+743x^28+774x^30+256x^31+2990x^32+1280x^33+4324x^34+2560x^35+6381x^36+2560x^37+4204x^38+1280x^39+3169x^40+256x^41+834x^42+681x^44+46x^46+129x^48+35x^52+6x^56

The gray image is a code over GF(2) with n=144, k=15 and d=48.
This code was found by Heurico 1.16 in 23.5 seconds.