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

generates a code of length 98 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+43x^74+105x^76+173x^78+234x^80+304x^82+481x^84+655x^86+16x^87+908x^88+64x^89+1205x^90+232x^91+1650x^92+680x^93+2388x^94+1312x^95+2774x^96+1792x^97+2819x^98+1808x^99+2702x^100+1296x^101+2342x^102+656x^103+1748x^104+256x^105+1171x^106+72x^107+904x^108+8x^109+640x^110+455x^112+337x^114+219x^116+137x^118+58x^120+55x^122+31x^124+17x^126+14x^128+2x^130+4x^132

The gray image is a code over GF(2) with n=392, k=15 and d=148.
This code was found by Heurico 1.16 in 99 seconds.