The generator matrix

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

generates a code of length 71 over Z8 who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+78x^63+260x^64+308x^65+539x^66+588x^67+783x^68+592x^69+801x^70+652x^71+783x^72+518x^73+715x^74+408x^75+343x^76+240x^77+269x^78+106x^79+53x^80+60x^81+42x^82+20x^83+13x^84+8x^85+2x^86+4x^87+3x^88+2x^89+1x^92

The gray image is a code over GF(2) with n=284, k=13 and d=126.
This code was found by Heurico 1.16 in 2.66 seconds.