The generator matrix

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

generates a code of length 6 over Z8 who´s minimum homogenous weight is 2.

Homogenous weight enumerator: w(x)=1x^0+16x^2+55x^4+368x^6+55x^8+16x^10+1x^12

The gray image is a code over GF(2) with n=24, k=9 and d=4.
This code was found by Heurico 1.16 in 0.000245 seconds.