The generator matrix

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

generates a code of length 70 over Z8 who´s minimum homogenous weight is 62.

Homogenous weight enumerator: w(x)=1x^0+79x^62+222x^63+365x^64+540x^65+661x^66+628x^67+705x^68+694x^69+703x^70+832x^71+561x^72+492x^73+526x^74+348x^75+243x^76+200x^77+161x^78+102x^79+69x^80+24x^81+13x^82+8x^83+8x^84+2x^85+1x^86+4x^87

The gray image is a code over GF(2) with n=280, k=13 and d=124.
This code was found by Heurico 1.16 in 2.56 seconds.