The generator matrix

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

generates a code of length 68 over Z8 who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+136x^63+221x^64+290x^65+201x^66+244x^67+203x^68+162x^69+76x^70+164x^71+74x^72+54x^73+51x^74+54x^75+56x^76+30x^77+7x^78+8x^79+4x^80+8x^81+2x^83+1x^84+1x^86

The gray image is a code over GF(2) with n=272, k=11 and d=126.
This code was found by Heurico 1.16 in 0.266 seconds.