The generator matrix

 1  0  1  1  1  8  1  1  6  1  1  1  1  1  2  1  1  1
 0  1  1  4  3  1  0 15  1 10  5  3  6  0 14  1  7  8
 0  0  2 10  8 10 12 14  0  6  8 12  0  6 10  4  2  4

generates a code of length 18 over Z16 who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+56x^15+233x^16+496x^17+580x^18+384x^19+185x^20+80x^21+20x^22+8x^23+4x^24+1x^28

The gray image is a code over GF(2) with n=144, k=11 and d=60.
This code was found by Heurico 1.16 in 0.016 seconds.