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

generates a code of length 99 over Z8 who´s minimum homogenous weight is 74.

Homogenous weight enumerator: w(x)=1x^0+35x^74+74x^76+120x^78+206x^80+269x^82+387x^84+549x^86+8x^87+720x^88+68x^89+1042x^90+216x^91+1428x^92+484x^93+1822x^94+984x^95+2571x^96+1544x^97+3168x^98+1680x^99+2968x^100+1384x^101+2522x^102+984x^103+1986x^104+564x^105+1327x^106+216x^107+990x^108+52x^109+767x^110+8x^111+499x^112+411x^114+277x^116+182x^118+117x^120+48x^122+48x^124+19x^126+11x^128+4x^130+4x^132+3x^134+1x^136

The gray image is a code over GF(2) with n=396, k=15 and d=148.
This code was found by Heurico 1.16 in 99.1 seconds.