The generator matrix

 1  0  0  1  1  1  6  1  1  1  1  0  4  0  1  1  2  2  1  1  6  2  1  1  2  2  0  2  6  0  4  1  1  0  4  1  4  2  1  6  1  6  1  1  1  2  4  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  1  1  1
 0  1  0  1  0  3  1  1  6  0  7  2  1  1  2  4  1  2  4  2  4  1  1  3  1  1  1  1  1  2  0  6  5  1  1  7  1  2  4  1  4  0  1  4  6  1  1  0  4  0  0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  1  1  1  0  1  1  3  2  0  1  2  3  2  1  2  1  0  1  1  3  3  0  6  3  6  4  2  2  1  3  0  1  2  1  6  1  2  0  1  1  2  3  2  3  0  0  0  0  0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  2  0  0  0  2  0  2  2  4  4  6  6  4  4  4  6  0  2  2  4  4  6  2  6  4  4  2  4  2  4  2  2  0  2  6  0  2  0  4  6  4  2  6  4  0  4  0  0  2  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  2  6  6  2  0  0  0  6  4  6  2  0  0  4  0  0  2  4  6  4  2  4  0  2  6  0  6  6  0  4  2  4  0  2  0  6  0  0  6  2  0  4  2  0  6  4  0  2  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  4  0  0  4  4  4  4  4  0  4  4  0  0  0  0  4  4  4  0  4  4  0  4  0  4  0  4  4  4  0  0  0  0  0  0  4  0  4  4  0  4  0  4  4  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  4  0  4  4  0  0  0  4  4  0  0  4  0  4  4  0  4  4  4  4  0  0  4  0  0  4  0  4  0  0  4  4  4  0  4  0  4  0  0  0  0  4  4  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  4  4  0  4  4  0  4  0  0  4  0  0  4  4  0  4  4  0  0  0  4  0  4  0  4  4  4  4  0  0  4  4  0  0  4  4  0  4  4  0  4  0  4  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0

generates a code of length 75 over Z8 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+2x^40+14x^41+29x^42+30x^43+74x^44+92x^45+132x^46+206x^47+317x^48+368x^49+514x^50+544x^51+619x^52+730x^53+718x^54+822x^55+634x^56+610x^57+499x^58+368x^59+302x^60+210x^61+148x^62+82x^63+132x^64+152x^65+208x^66+350x^67+675x^68+1146x^69+1916x^70+2760x^71+3902x^72+4992x^73+5460x^74+5950x^75+5828x^76+4788x^77+3702x^78+2826x^79+1914x^80+1102x^81+744x^82+388x^83+198x^84+162x^85+85x^86+82x^87+144x^88+174x^89+324x^90+428x^91+499x^92+622x^93+657x^94+776x^95+737x^96+728x^97+625x^98+544x^99+476x^100+396x^101+292x^102+198x^103+156x^104+76x^105+58x^106+30x^107+23x^108+22x^109+13x^110+5x^112+3x^114+2x^116+1x^118

The gray image is a code over GF(2) with n=300, k=16 and d=80.
This code was found by Heurico 1.16 in 100 seconds.