The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+46x^60+132x^61+225x^62+314x^63+436x^64+648x^65+637x^66+664x^67+727x^68+740x^69+732x^70+592x^71+666x^72+508x^73+365x^74+308x^75+138x^76+112x^77+63x^78+38x^79+23x^80+28x^81+21x^82+4x^83+9x^84+8x^85+4x^86+2x^88+1x^90

The gray image is a code over GF(2) with n=276, k=13 and d=120.
This code was found by Heurico 1.16 in 3.22 seconds.