The generator matrix

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

generates a code of length 74 over Z8 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+6x^40+16x^41+50x^42+58x^43+129x^44+136x^45+294x^46+286x^47+663x^48+450x^49+945x^50+566x^51+1007x^52+622x^53+945x^54+462x^55+580x^56+274x^57+260x^58+136x^59+151x^60+38x^61+76x^62+76x^63+98x^64+194x^65+401x^66+678x^67+1327x^68+1840x^69+3067x^70+3502x^71+5284x^72+4982x^73+6240x^74+4948x^75+5342x^76+3620x^77+3176x^78+1876x^79+1196x^80+586x^81+398x^82+204x^83+98x^84+66x^85+86x^86+56x^87+136x^88+118x^89+278x^90+256x^91+594x^92+496x^93+966x^94+632x^95+1099x^96+566x^97+883x^98+448x^99+569x^100+280x^101+300x^102+132x^103+126x^104+46x^105+56x^106+18x^107+22x^108+6x^109+10x^110+2x^111+3x^112+1x^114+1x^116

The gray image is a code over GF(2) with n=296, k=16 and d=80.
This code was found by Heurico 1.16 in 98.4 seconds.