The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+220x^60+668x^61+1009x^62+1322x^63+1903x^64+2032x^65+2480x^66+2442x^67+2864x^68+2894x^69+2954x^70+2714x^71+2395x^72+2022x^73+1851x^74+1034x^75+824x^76+518x^77+311x^78+166x^79+75x^80+42x^81+1x^82+16x^83+6x^84+2x^87+2x^90

The gray image is a code over GF(2) with n=276, k=15 and d=120.
This code was found by Heurico 1.16 in 35 seconds.