The generator matrix

 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  1  1  1  1  1  1  1  2  1  1  1  0  1  2  0  2  2  0  0  1  2  2  2  2  1  2  0  2  1  2  4  0  2  1  4  2  1  1  1  1  1  0  2  1
 0  2  0  0  0  0  0  0  0  0  0  0  0  4  4  0  0  4  0  0  0  4  4  6  6  2  6  6  2  2  6  6  6  6  2  4  2  2  6  4  6  6  2  6  4  6  0  6  4  6  6  0  6  4  4  0  2  0  0  2  6  6  2  4  6  2  0  0  0  0  2  4  0  4  0  4  4  6  2  4  4  0  4  2  4  6  2  6  2  2  0  0
 0  0  2  0  0  0  0  0  0  0  2  2  6  6  6  4  6  2  4  6  4  6  4  4  6  6  0  4  2  4  0  4  2  4  2  0  6  6  0  2  4  2  4  2  2  6  4  0  4  2  2  4  6  0  0  2  6  0  6  2  4  4  6  4  6  6  0  0  2  2  2  2  2  2  0  4  4  0  2  2  2  2  2  2  4  0  6  2  0  0  4  0
 0  0  0  2  0  0  0  2  6  2  4  2  2  0  2  0  2  0  6  6  4  4  0  2  4  2  6  0  0  2  6  6  4  0  6  4  4  4  4  2  6  0  6  6  0  6  4  4  6  0  4  2  6  6  4  6  2  0  4  2  0  4  6  0  4  0  2  2  2  4  4  4  0  6  4  0  2  2  6  4  2  2  0  2  2  4  2  0  2  6  2  0
 0  0  0  0  2  0  2  2  2  4  4  4  4  2  6  2  6  2  6  4  4  4  4  0  2  0  0  4  2  2  0  6  0  2  4  6  2  4  6  2  6  4  6  0  4  2  0  0  2  2  2  0  6  4  6  2  2  6  0  0  6  4  2  0  6  4  2  4  6  4  2  4  4  0  2  4  2  6  4  6  0  6  6  0  4  4  2  0  0  2  4  0
 0  0  0  0  0  2  2  0  2  6  2  0  2  0  2  4  4  2  4  4  2  0  4  4  4  2  2  2  6  0  6  0  6  6  4  6  6  4  4  6  2  4  2  6  2  6  4  6  0  4  6  4  6  6  2  2  0  0  4  0  2  4  2  6  4  2  6  4  6  0  2  4  6  0  4  2  2  2  2  4  2  4  6  0  0  6  6  0  2  0  4  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  0  4  4  4  4  4  4  4  4  4  4  4  4  4  4  4  4  0  4  4  4  4  4  4  4  4  0  4  0  4  4  4  4  4  0  0  0  4  4  0  4  0  0  4  4  4  0  4  0  0  0  0  4  4  4  0
 0  0  0  0  0  0  0  4  4  0  0  0  0  4  4  4  0  0  0  4  4  4  4  4  0  0  0  0  4  4  4  0  0  4  0  4  0  4  0  0  4  0  0  0  4  4  4  4  0  4  4  0  0  4  4  4  0  4  0  0  0  4  0  4  4  0  4  4  0  4  0  0  4  0  4  0  4  0  4  4  4  4  4  4  4  4  4  0  4  4  0  4

generates a code of length 92 over Z8 who´s minimum homogenous weight is 77.

Homogenous weight enumerator: w(x)=1x^0+32x^77+105x^78+214x^79+296x^80+344x^81+427x^82+542x^83+686x^84+900x^85+1111x^86+1318x^87+1713x^88+2176x^89+2528x^90+2660x^91+2785x^92+2630x^93+2394x^94+2280x^95+1816x^96+1388x^97+1078x^98+808x^99+611x^100+534x^101+377x^102+272x^103+221x^104+158x^105+141x^106+78x^107+53x^108+24x^109+29x^110+20x^111+9x^112+6x^113+1x^114+1x^116+1x^138

The gray image is a code over GF(2) with n=368, k=15 and d=154.
This code was found by Heurico 1.16 in 98.6 seconds.