The generator matrix

 1  0  0  1  1  1  2  1  1  0  1  6  1  0  1  2  1  6  6  0  1  2  1  0  1  1  0  1  4  1  0  6  1  2  1  2  1
 0  1  0  1  0  3  1  0  7  1  1  1  2  2  5  1  2  2  1  1  0  1  7  1  0  4  0  0  1  3  2  1  3  0  7  2  0
 0  0  1  1  1  0  1  2  0  3  3  4  1  1  3  0  1  1  1  4  0  4  6  1  7  7  1  6  2  3  6  4  0  0  3  1  0
 0  0  0  2  0  6  0  6  4  6  4  6  2  0  6  4  0  0  0  6  2  0  4  2  2  2  2  2  6  2  2  4  2  4  0  0  0
 0  0  0  0  2  0  0  4  6  2  6  6  2  2  2  6  4  0  2  4  2  4  6  0  2  4  0  4  6  4  4  0  6  6  0  2  0
 0  0  0  0  0  4  0  0  0  0  0  4  0  0  0  4  4  4  4  4  0  4  4  4  4  4  0  4  0  0  4  4  0  0  4  0  0
 0  0  0  0  0  0  4  0  0  0  4  0  0  4  4  0  0  4  4  4  4  4  4  0  4  0  0  4  0  4  4  0  0  4  4  4  4

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

Homogenous weight enumerator: w(x)=1x^0+58x^28+148x^29+405x^30+684x^31+1193x^32+1820x^33+2559x^34+3346x^35+3974x^36+4338x^37+3970x^38+3474x^39+2618x^40+1754x^41+1168x^42+662x^43+328x^44+130x^45+88x^46+26x^47+20x^48+2x^49+1x^50+1x^62

The gray image is a code over GF(2) with n=148, k=15 and d=56.
This code was found by Heurico 1.16 in 16.3 seconds.