The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+132x^62+132x^63+380x^64+228x^65+427x^66+260x^67+397x^68+284x^69+399x^70+284x^71+400x^72+236x^73+233x^74+92x^75+92x^76+20x^77+35x^78+23x^80+20x^82+17x^84+2x^86+2x^92

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 0.893 seconds.