The generator matrix

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

generates a code of length 55 over Z16 who´s minimum homogenous weight is 47.

Homogenous weight enumerator: w(x)=1x^0+218x^47+1266x^48+3348x^49+6701x^50+11946x^51+21363x^52+28132x^53+37203x^54+40408x^55+38771x^56+28840x^57+21333x^58+11798x^59+6003x^60+2826x^61+1351x^62+420x^63+114x^64+50x^65+30x^66+8x^67+2x^68+2x^69+6x^70+2x^71+2x^73

The gray image is a code over GF(2) with n=440, k=18 and d=188.
This code was found by Heurico 1.16 in 490 seconds.