The generator matrix

 1  0  1  1  1  1  1  1  1  0  1  1  1  0  1  1  2  1  1  1  1  1  1  0  1  1  1  1 2a  1 2a  1  1  1  1  1  1  0  1 2a+2  1  1  1  1  1  1  1
 0  1  1  a 3a+3  0 2a+3 a+1  a  1  0 2a+3  a  1 a+1 a+2  1 2a+3 a+1  0 3a 2a+3 a+1  1  2  a 2a+3 3a+1  1 a+2  1 3a+2 2a+1 3a 2a+2  2 2a+1  1 a+2  1 2a+1 2a+1 a+3  0  3  a a+1
 0  0 2a+2  0  0  0  2  2  2  2  2  2 2a+2 2a+2 2a 2a+2 2a+2 2a 2a+2  2 2a 2a 2a  2 2a+2 2a+2  2 2a+2 2a  2 2a 2a 2a+2 2a  2 2a 2a+2  0  2  2  2 2a  2 2a+2 2a  0 2a+2
 0  0  0  2  0  2 2a+2  0  2 2a+2  2  0 2a 2a+2  0  0  2  2 2a+2 2a  2  2  0  2  2  2 2a  2 2a+2  2 2a+2  0 2a+2 2a 2a  2  0 2a+2 2a+2  2  0 2a+2  2 2a+2  0 2a+2 2a
 0  0  0  0 2a+2 2a+2  2 2a+2 2a  0 2a+2  2  2 2a  2  2  2 2a  2 2a+2 2a+2  0 2a  0  0 2a+2 2a 2a  0  2  2  0 2a 2a  0 2a+2  2 2a+2 2a+2  2 2a+2 2a 2a  2 2a+2 2a 2a

generates a code of length 47 over GR(16,4) who´s minimum homogenous weight is 128.

Homogenous weight enumerator: w(x)=1x^0+357x^128+132x^129+168x^130+756x^132+660x^133+432x^134+1275x^136+1224x^137+576x^138+1461x^140+1800x^141+912x^142+1740x^144+1716x^145+792x^146+1137x^148+612x^149+192x^150+285x^152+63x^156+33x^160+39x^164+12x^168+9x^176

The gray image is a code over GF(4) with n=188, k=7 and d=128.
This code was found by Heurico 1.16 in 68.3 seconds.