The generator matrix

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

generates a code of length 73 over Z8 who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+191x^68+88x^69+478x^70+32x^71+390x^72+44x^73+262x^74+52x^75+174x^76+8x^77+136x^78+8x^79+84x^80+12x^81+38x^82+4x^83+23x^84+8x^85+14x^86+1x^96

The gray image is a code over GF(2) with n=292, k=11 and d=136.
This code was found by Heurico 1.16 in 0.296 seconds.