The generator matrix

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

generates a code of length 21 over Z8 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+125x^16+256x^18+642x^20+656x^22+272x^24+48x^26+46x^28+2x^32

The gray image is a code over GF(2) with n=84, k=11 and d=32.
This code was found by Heurico 1.16 in 0.192 seconds.