The generator matrix

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

generates a code of length 14 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+166x^12+192x^14+143x^16+10x^20

The gray image is a code over GF(2) with n=56, k=9 and d=24.
This code was found by Heurico 1.16 in 0.00347 seconds.