The generator matrix

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

generates a code of length 37 over GR(16,4) who´s minimum homogenous weight is 104.

Homogenous weight enumerator: w(x)=1x^0+231x^104+540x^105+144x^106+72x^107+348x^108+696x^109+240x^110+72x^111+306x^112+324x^113+96x^114+24x^115+135x^116+384x^117+96x^118+24x^119+186x^120+168x^121+9x^124

The gray image is a code over GF(4) with n=148, k=6 and d=104.
This code was found by Heurico 1.16 in 0.031 seconds.