The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+109x^16+16x^17+240x^18+128x^19+429x^20+224x^21+418x^22+128x^23+233x^24+16x^25+76x^26+27x^28+2x^30+1x^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 0.0537 seconds.