The generator matrix

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

generates a code of length 45 over Z16 who´s minimum homogenous weight is 37.

Homogenous weight enumerator: w(x)=1x^0+112x^37+773x^38+2224x^39+5328x^40+11156x^41+19298x^42+29308x^43+40532x^44+43384x^45+42163x^46+29744x^47+19248x^48+10634x^49+5036x^50+2180x^51+644x^52+228x^53+84x^54+48x^55+5x^56+6x^57+4x^58+2x^60+2x^62

The gray image is a code over GF(2) with n=360, k=18 and d=148.
This code was found by Heurico 1.16 in 368 seconds.