The generator matrix

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

generates a code of length 77 over Z8 who´s minimum homogenous weight is 71.

Homogenous weight enumerator: w(x)=1x^0+102x^71+157x^72+184x^73+229x^74+176x^75+190x^76+152x^77+134x^78+158x^79+130x^80+152x^81+108x^82+66x^83+43x^84+16x^85+20x^86+6x^87+2x^88+4x^89+3x^90+2x^91+2x^92+2x^93+2x^94+2x^95+2x^96+2x^101+1x^108

The gray image is a code over GF(2) with n=308, k=11 and d=142.
This code was found by Heurico 1.16 in 0.41 seconds.