The generator matrix

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

generates a code of length 26 over GR(16,4) who´s minimum homogenous weight is 76.

Homogenous weight enumerator: w(x)=1x^0+6x^76+72x^77+144x^78+24x^81+9x^88

The gray image is a code over GF(4) with n=104, k=4 and d=76.
This code was found by Heurico 1.16 in -3.62e-008 seconds.