The generator matrix

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

generates a code of length 71 over Z8 who´s minimum homogenous weight is 62.

Homogenous weight enumerator: w(x)=1x^0+274x^62+676x^63+1107x^64+1332x^65+1704x^66+2092x^67+2455x^68+2668x^69+2704x^70+2916x^71+2722x^72+2752x^73+2502x^74+2032x^75+1598x^76+1148x^77+806x^78+576x^79+358x^80+164x^81+128x^82+28x^83+9x^84+8x^86+4x^88+2x^90+2x^92

The gray image is a code over GF(2) with n=284, k=15 and d=124.
This code was found by Heurico 1.16 in 36.8 seconds.