The generator matrix

 1  0  1  1  1  4  1  1  0  1  1  6  1  8  1 14  1  1  6  1  1 10  1  1  1 12  1 14  1  1  1  1 10  1  4 10  8  1  1  1  1 12 10  1  6  1  6  2  1  2  1  2  1  2  1  1  4  1
 0  1  1  0 11  1  1  0  1 10  5  1 15  1 12  1 15 14  1 13  2  1  2  3 14  1  3  1 13  0  0  0  1 14  1  1  1 13  8  9  6  8  1  5  1  4  1  2  1  0 10 12  2  0 13  7  1  0
 0  0  2  0  0  8 10  2  2  2  8  2  4 14  6  6  2  4  0  8  2 12  4 10  6  0  0  8  0 10  4  2  6  2 12  8 10 14  4  0  2  2  6  6 12  4  6  2  6  0  0 14 10  0  4  2  2  0
 0  0  0  2  0 10 14 14  6  8 10  0 14  8  0  2 14  2  4 12  6 14  4  8  8 12 14  4  0  4  8 10 10  6 14 10 10  4  2  6  2 12  4  6 10  0  4 14  8  2 10 10  4  6  6  0  4  4
 0  0  0  0 12  0  0 12 12  4  4  4 12  4  8  0  4  4 12  8  8  4  4  4  8  4  0  0 12  4  4  0  4 12  0 12  8  4  8 12  8  4 12  0 12  0  0 12 12  4  8 12  0  4  8  0  4  4

generates a code of length 58 over Z16 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+138x^50+538x^51+967x^52+1958x^53+2969x^54+5358x^55+6759x^56+9516x^57+9441x^58+9102x^59+7101x^60+5364x^61+2822x^62+1836x^63+790x^64+508x^65+180x^66+86x^67+54x^68+30x^69+1x^70+6x^71+6x^72+1x^74+2x^75+2x^76

The gray image is a code over GF(2) with n=464, k=16 and d=200.
This code was found by Heurico 1.16 in 41.7 seconds.