The generator matrix

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

generates a code of length 89 over Z8 who´s minimum homogenous weight is 76.

Homogenous weight enumerator: w(x)=1x^0+63x^76+106x^77+264x^78+388x^79+485x^80+612x^81+1025x^82+1168x^83+1578x^84+2032x^85+2200x^86+2458x^87+2662x^88+2820x^89+2629x^90+2698x^91+2241x^92+1862x^93+1460x^94+1116x^95+873x^96+648x^97+482x^98+296x^99+229x^100+96x^101+96x^102+54x^103+47x^104+16x^105+29x^106+14x^107+8x^108+4x^110+3x^112+3x^114+1x^116+1x^120

The gray image is a code over GF(2) with n=356, k=15 and d=152.
This code was found by Heurico 1.16 in 68.7 seconds.