The generator matrix

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

generates a code of length 25 over GR(16,4) who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+360x^63+510x^64+540x^65+924x^66+2004x^67+1716x^68+1572x^69+1704x^70+4788x^71+4311x^72+4140x^73+3168x^74+7452x^75+6933x^76+5580x^77+3672x^78+6996x^79+4116x^80+1992x^81+1284x^82+1440x^83+318x^84+3x^88+9x^92+3x^96

The gray image is a code over GF(4) with n=100, k=8 and d=63.
This code was found by Heurico 1.16 in 5.16 seconds.