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

generates a code of length 38 over GR(16,4) who´s minimum homogenous weight is 100.

Homogenous weight enumerator: w(x)=1x^0+87x^100+72x^101+324x^103+330x^104+408x^105+840x^107+462x^108+1008x^109+1224x^111+1176x^112+1872x^113+1872x^115+1146x^116+1992x^117+1428x^119+675x^120+792x^121+456x^123+66x^124+60x^128+51x^132+27x^136+12x^140+3x^144

The gray image is a code over GF(4) with n=152, k=7 and d=100.
This code was found by Heurico 1.16 in 0.765 seconds.