The generator matrix

 1  0  0  0  1  1  1  2  1  1  2  1  2  2  1  1  2  0  1  1  1  1  0  0  1  0  1  1  2  2  2  0  2  2  1  0  0  2  2  1  1  1  1  1  2  0  1  1  2  2  2
 0  1  0  0  0  0  0  0  1  3  1  1  1  1  3  2  1  2  1  1  2  3  1  1  0  1  0  3  2  1  1  1  2  1  3  1  2  2  1  3  1  1  3  3  0  0  1  2  0  1  0
 0  0  1  0  0  1  3  1  1  1  2  2  3  1  2  0  0  1  1  0  1  3  2  1  3  3  2  1  1  3  0  0  1  1  2  3  1  2  2  3  3  3  3  3  1  2  1  2  0  2  1
 0  0  0  1  1  3  0  1  2  1  3  1  1  2  2  2  0  0  0  3  2  3  3  1  1  2  3  0  0  2  1  0  0  3  0  2  3  1  0  2  2  0  0  2  1  1  0  3  1  1  1
 0  0  0  0  2  2  2  0  2  2  0  2  0  0  2  2  0  2  0  0  0  0  2  2  0  0  0  0  0  2  2  2  2  2  0  2  0  0  2  2  2  0  2  0  2  2  2  2  0  0  0

generates a code of length 51 over Z4 who´s minimum homogenous weight is 46.

Homogenous weight enumerator: w(x)=1x^0+77x^46+114x^48+131x^50+60x^52+45x^54+28x^56+23x^58+14x^60+2x^62+5x^64+6x^66+2x^68+4x^70

The gray image is a code over GF(2) with n=102, k=9 and d=46.
This code was found by Heurico 1.16 in 0.044 seconds.