The generator matrix

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

generates a code of length 69 over Z8 who´s minimum homogenous weight is 62.

Homogenous weight enumerator: w(x)=1x^0+62x^62+182x^63+294x^64+336x^65+388x^66+406x^67+352x^68+344x^69+339x^70+360x^71+257x^72+194x^73+176x^74+112x^75+101x^76+80x^77+53x^78+14x^79+16x^80+4x^81+3x^82+10x^83+3x^84+2x^86+4x^87+2x^89+1x^90

The gray image is a code over GF(2) with n=276, k=12 and d=124.
This code was found by Heurico 1.16 in 0.738 seconds.