The generator matrix

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

generates a code of length 38 over Z8 who´s minimum homogenous weight is 26.

Homogenous weight enumerator: w(x)=1x^0+65x^26+48x^27+153x^28+198x^29+319x^30+460x^31+756x^32+1184x^33+1658x^34+2540x^35+3147x^36+3734x^37+4080x^38+3784x^39+3280x^40+2560x^41+1727x^42+1176x^43+700x^44+482x^45+279x^46+172x^47+137x^48+32x^49+52x^50+12x^51+15x^52+2x^53+10x^54+2x^56+2x^58+1x^60

The gray image is a code over GF(2) with n=152, k=15 and d=52.
This code was found by Heurico 1.16 in 24.6 seconds.