The generator matrix

1 0 0 0 0 0 0 1 1 1 2 1 1 2 1 1 0 2 2 1 1 1 2 2 1 0 1 2 2 2 1 1 1 0 1 2 1 1 1 1 0 0 2 0 0 1 1 1 1 1 2 1 1 1 2 0 0 1 1 2 2 1 0 1 1 1 1 0 0 1 2 2 1 2 0 1 1 0 1 1 2 2 2 1 1 1 2 1 1 2 1
0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 2 0 2 0 0 0 2 2 2 0 0 2 2 2 2 0 2 0 0 2 2 2 2 2 0 0 2 1 1 1 1 3 1 1 1 3 1 1 1 1 3 3 1 1 3 1 0 3 3 3 1 1 0 1 1 3 1 1 0 0 1 3 1 1 1 1 0 1 0 0 3 2 2 0
0 0 1 0 0 0 0 0 0 0 0 0 2 2 0 0 2 2 2 1 3 1 1 1 3 1 1 1 1 1 3 3 3 1 3 2 3 1 0 2 1 2 1 2 0 3 0 0 0 2 2 1 1 2 1 2 0 1 1 3 1 1 0 3 2 3 0 2 3 3 3 2 2 3 0 0 1 0 3 2 1 2 2 1 0 0 0 0 0 2 0
0 0 0 1 0 0 0 0 0 0 0 1 1 1 1 3 1 1 2 3 2 1 2 1 3 0 3 1 1 3 2 0 0 2 1 1 3 0 0 0 3 2 1 1 1 3 2 0 1 1 3 2 3 0 0 2 1 1 1 1 1 3 1 3 1 3 2 1 1 2 0 1 3 2 1 2 3 0 1 2 2 1 2 2 1 2 1 1 1 1 0
0 0 0 0 1 0 0 0 1 1 1 2 1 3 1 0 0 3 2 1 1 1 1 3 2 1 0 0 2 3 3 2 2 2 0 1 3 1 3 3 1 1 0 3 2 0 1 3 0 1 3 3 1 2 0 3 0 0 2 1 0 1 2 1 0 0 0 1 0 1 0 1 1 1 3 3 1 2 1 2 3 0 1 2 1 1 1 0 0 1 1
0 0 0 0 0 1 0 1 0 1 3 2 1 3 2 1 3 0 0 0 2 1 3 2 0 2 1 1 0 3 3 0 3 1 2 2 1 0 0 3 1 0 2 1 0 3 2 3 2 3 2 2 3 1 2 3 0 2 0 3 2 2 1 0 2 3 0 3 0 3 0 0 1 2 3 0 3 3 1 1 2 1 0 3 0 0 2 3 0 3 0
0 0 0 0 0 0 1 1 3 2 1 1 1 0 0 0 3 1 1 1 0 0 0 0 2 1 3 0 1 1 1 0 1 0 1 2 3 1 2 1 2 3 0 3 3 3 2 3 3 0 1 3 0 2 2 2 0 1 2 0 1 1 1 0 0 2 0 0 1 2 3 2 2 3 1 1 2 1 1 1 2 2 3 2 0 0 2 0 1 2 2
0 0 0 0 0 0 0 2 2 0 2 2 2 0 0 0 2 2 2 2 0 0 0 0 0 2 2 0 2 2 2 2 0 2 0 2 0 0 2 0 2 0 2 0 2 0 0 2 0 0 0 2 2 0 2 0 2 2 2 0 0 0 0 2 0 0 2 2 0 2 0 0 2 2 2 0 2 0 0 2 0 2 2 0 2 2 0 0 2 2 0

generates a code of length 91 over Z4 who´s minimum homogenous weight is 75.

Homogenous weight enumerator: w(x)=1x^0+52x^75+153x^76+278x^77+385x^78+550x^79+646x^80+764x^81+913x^82+1064x^83+1238x^84+1344x^85+1352x^86+1488x^87+1714x^88+1696x^89+1816x^90+1874x^91+1711x^92+1726x^93+1715x^94+1586x^95+1544x^96+1314x^97+1191x^98+1024x^99+912x^100+800x^101+510x^102+448x^103+328x^104+240x^105+167x^106+98x^107+66x^108+28x^109+14x^110+8x^111+7x^112+2x^113+1x^154

The gray image is a code over GF(2) with n=182, k=15 and d=75.
This code was found by Heurico 1.10 in 170 seconds.