The generator matrix

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

generates a code of length 71 over Z8 who´s minimum homogenous weight is 61.

Homogenous weight enumerator: w(x)=1x^0+66x^61+343x^62+742x^63+983x^64+1424x^65+1686x^66+2030x^67+2351x^68+2484x^69+2750x^70+2930x^71+2897x^72+2532x^73+2550x^74+2178x^75+1623x^76+1178x^77+791x^78+552x^79+271x^80+168x^81+96x^82+72x^83+32x^84+16x^85+8x^86+8x^87+4x^89+2x^92

The gray image is a code over GF(2) with n=284, k=15 and d=122.
This code was found by Heurico 1.16 in 37.7 seconds.