The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+41x^28+64x^29+167x^30+228x^31+254x^32+286x^33+561x^34+828x^35+1042x^36+1294x^37+986x^38+820x^39+622x^40+314x^41+218x^42+164x^43+141x^44+90x^45+44x^46+8x^47+11x^48+5x^50+2x^54+1x^62

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 1.87 seconds.