The generator matrix

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

generates a code of length 69 over Z8 who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+218x^60+634x^61+1027x^62+1372x^63+1858x^64+1956x^65+2446x^66+2674x^67+2965x^68+2752x^69+2934x^70+2644x^71+2426x^72+1958x^73+1789x^74+1116x^75+865x^76+550x^77+257x^78+176x^79+77x^80+34x^81+27x^82+2x^83+6x^84+4x^85

The gray image is a code over GF(2) with n=276, k=15 and d=120.
This code was found by Heurico 1.11 in 15.9 seconds.