The generator matrix

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

generates a code of length 85 over Z8 who´s minimum homogenous weight is 39.

Homogenous weight enumerator: w(x)=1x^0+14x^39+29x^40+16x^41+12x^42+26x^43+17x^44+36x^45+39x^46+38x^47+77x^48+86x^49+113x^50+156x^51+171x^52+172x^53+222x^54+324x^55+343x^56+324x^57+437x^58+560x^59+513x^60+478x^61+555x^62+514x^63+430x^64+394x^65+417x^66+412x^67+297x^68+250x^69+220x^70+208x^71+208x^72+216x^73+231x^74+302x^75+376x^76+542x^77+706x^78+1148x^79+1722x^80+2466x^81+3654x^82+4684x^83+5638x^84+5946x^85+5538x^86+4828x^87+3636x^88+2430x^89+1686x^90+1124x^91+828x^92+554x^93+342x^94+306x^95+198x^96+210x^97+178x^98+192x^99+248x^100+272x^101+320x^102+374x^103+394x^104+404x^105+488x^106+466x^107+506x^108+580x^109+500x^110+494x^111+436x^112+424x^113+348x^114+264x^115+269x^116+198x^117+155x^118+116x^119+101x^120+78x^121+64x^122+60x^123+47x^124+32x^125+22x^126+26x^127+23x^128+14x^129+2x^130+2x^131+1x^132+4x^133+5x^134+2x^135+1x^136+2x^137+2x^138+1x^140+1x^144

The gray image is a code over GF(2) with n=340, k=16 and d=78.
This code was found by Heurico 1.16 in 97.3 seconds.