The generator matrix

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

generates a code of length 10 over Z8 who´s minimum homogenous weight is 8.

Homogenous weight enumerator: w(x)=1x^0+49x^8+40x^9+96x^10+16x^11+38x^12+8x^13+8x^14

The gray image is a code over GF(2) with n=40, k=8 and d=16.
This code was found by Heurico 1.16 in 0.000518 seconds.