The generator matrix

 1  0  0  0  1  1  1  2  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 2a  1  1  0  1  1 2a  1  1  1  1 2a+2
 0  1  0  0  2  1  3  1  a 3a+3 3a  1 2a+3 a+1 3a+3 a+1 3a+3 3a+2  a a+3 2a+2  a a+3  2  3 2a 3a+1 a+2 2a+3  2 2a  3 2a+1  1 2a+2 a+3  2 3a+2  0  1 3a  0 2a+1  0  1
 0  0  1  0 2a+3  1 2a+2 2a+3 3a+2  a 2a+2 2a+1 3a+1 2a+3 a+1 2a a+2 a+3 2a+2  2  a 2a+1 3a+1 a+2 3a+1 a+3  0 2a+3 a+1 2a  1  3 3a+2 3a+1  1 2a+1  1 3a+3 3a+2  a  2  0  1 2a 2a+2
 0  0  0  1 3a+3  2 3a+1 3a+1 2a+2 2a+1 a+1 2a+3 3a+1 a+3  3  2 2a+2  3 a+2 a+1 2a+3  a a+3 a+2  a 2a+2  3 2a+3  0 3a+2 2a+1 3a+2 3a+2 3a a+2  1 2a+1  2 2a 3a+3  1  a a+1  0  2

generates a code of length 45 over GR(16,4) who´s minimum homogenous weight is 121.

Homogenous weight enumerator: w(x)=1x^0+348x^121+600x^122+600x^123+1038x^124+1704x^125+1836x^126+1752x^127+1962x^128+2556x^129+3420x^130+2004x^131+3177x^132+4116x^133+4692x^134+3012x^135+3846x^136+4800x^137+5628x^138+2916x^139+3357x^140+3468x^141+3120x^142+1620x^143+1269x^144+1272x^145+672x^146+384x^147+171x^148+168x^149+12x^152+9x^156+6x^160

The gray image is a code over GF(4) with n=180, k=8 and d=121.
This code was found by Heurico 1.16 in 11 seconds.