The generator matrix

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

generates a code of length 10 over Z8 who´s minimum homogenous weight is 4.

Homogenous weight enumerator: w(x)=1x^0+100x^4+832x^6+4958x^8+4096x^9+12800x^10+4096x^11+4948x^12+832x^14+105x^16

The gray image is a code over GF(2) with n=40, k=15 and d=8.
This code was found by Heurico 1.16 in 0.56 seconds.