The generator matrix

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

generates a code of length 16 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+45x^12+32x^14+361x^16+32x^18+34x^20+6x^24+1x^28

The gray image is a code over GF(2) with n=64, k=9 and d=24.
This code was found by Heurico 1.16 in 0.00485 seconds.