The generator matrix

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

generates a code of length 37 over Z8 who´s minimum homogenous weight is 28.

Homogenous weight enumerator: w(x)=1x^0+41x^28+74x^29+148x^30+274x^31+302x^32+528x^33+597x^34+714x^35+958x^36+866x^37+970x^38+838x^39+617x^40+486x^41+292x^42+206x^43+103x^44+92x^45+34x^46+16x^47+23x^48+2x^49+7x^50+2x^52+1x^56

The gray image is a code over GF(2) with n=148, k=13 and d=56.
This code was found by Heurico 1.16 in 1.9 seconds.