The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+78x^62+234x^63+355x^64+500x^65+637x^66+704x^67+696x^68+704x^69+709x^70+706x^71+651x^72+498x^73+492x^74+438x^75+291x^76+188x^77+112x^78+86x^79+45x^80+22x^81+13x^82+6x^83+9x^84+8x^85+5x^86+2x^87+2x^90

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 2.63 seconds.