The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+38x^62+168x^63+259x^64+372x^65+384x^66+558x^67+308x^68+370x^69+266x^70+308x^71+225x^72+270x^73+139x^74+140x^75+91x^76+70x^77+59x^78+36x^79+11x^80+6x^81+5x^82+6x^83+1x^84+5x^86

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 0.707 seconds.