The generator matrix

 1  0  1  1  1  4  1  1  1  1  0  6  1  2  1  0
 0  1  1  4  3  1  2  7  6  5  0  1  4  1  2  1
 0  0  2  6  4  6  2  6  4  0  2  0  2  6  6  4

generates a code of length 16 over Z8 who´s minimum homogenous weight is 14.

Homogenous weight enumerator: w(x)=1x^0+49x^14+76x^15+41x^16+40x^17+20x^18+12x^19+14x^20+3x^22

The gray image is a code over GF(2) with n=64, k=8 and d=28.
This code was found by Heurico 1.16 in 0.00123 seconds.