The generator matrix

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

generates a code of length 69 over Z8 who´s minimum homogenous weight is 61.

Homogenous weight enumerator: w(x)=1x^0+266x^61+538x^62+760x^63+914x^64+1268x^65+1088x^66+1418x^67+1333x^68+1450x^69+1364x^70+1434x^71+1154x^72+1032x^73+722x^74+656x^75+368x^76+312x^77+138x^78+74x^79+31x^80+24x^81+18x^82+10x^83+7x^84+4x^86

The gray image is a code over GF(2) with n=276, k=14 and d=122.
This code was found by Heurico 1.16 in 78.9 seconds.