The generator matrix

 1  0  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  8  0  7  8  1  0  7  3  7  3  0  7  4  6  1  3  1
 0  0  6  0  3  6  3  0  6  3  6  0  6  0  3  3  0  6  3  0
 0  0  0  3  3  6  6  3  0  0  3  6  6  3  3  6  6  3  0  3

generates a code of length 20 over Z9 who´s minimum homogenous weight is 36.

Homogenous weight enumerator: w(x)=1x^0+180x^36+260x^39+168x^42+100x^45+16x^48+4x^54

The gray image is a code over GF(3) with n=60, k=6 and d=36.
This code was found by Heurico 1.16 in 0.0777 seconds.