The generator matrix

 1  1  1  1  1  1  1  1  2  0  2 12  1  2  8  2  4  1
 0  2 12  6  8 14  4 10  6  2 10  2  0 14  2  2  2 12

generates a code of length 18 over Z16 who´s minimum homogenous weight is 17.

Homogenous weight enumerator: w(x)=1x^0+8x^17+108x^18+8x^19+1x^20+1x^24+1x^28

The gray image is a code over GF(2) with n=144, k=7 and d=68.
This code was found by Heurico 1.16 in 0.00195 seconds.