The generator matrix

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

generates a code of length 18 over Z8 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+131x^16+96x^17+160x^18+60x^20+32x^21+16x^22+16x^24

The gray image is a code over GF(2) with n=72, k=9 and d=32.
This code was found by Heurico 1.11 in 0.00241 seconds.