The generator matrix

 1  0  1  1  1 14  1  1  2  1  1 12  1  1  0  1  1 14  1  1 12  1  1 14  1  1  1  1  1  1  1  1  1  1  8  1  4  6  1  1  1 14  1  2  0  1
 0  1 11  6  5  1 11 12  1  9  2  1  7  0  1 14  5  1 12  7  1 14  5  1  8  4  6  6 12  0 14 14  2  3  1  7  1  1  1  1 13  1  2  1  1 11
 0  0 12  0  0  0  0  8  8  8  8  8  8  4  4  4  4 12 12  4 12 12 12  4  0  4  0  4  8 12 12  8  0  0  0  4  8  8  0 12 12 12  0 12  4  0
 0  0  0 12  8  4  4  8 12  0  4  8 12  4  4  0 12  0 12  8 12  8  4  8  4  0  0 12  4  0  4  8 12  0 12 12 12  0  4  8  0 12  4  8  0 12

generates a code of length 46 over Z16 who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+180x^42+368x^43+775x^44+528x^45+428x^46+528x^47+748x^48+368x^49+146x^50+9x^52+8x^54+1x^56+6x^58+2x^64

The gray image is a code over GF(2) with n=368, k=12 and d=168.
This code was found by Heurico 1.16 in 26 seconds.