The generator matrix

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

generates a code of length 75 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+74x^64+332x^65+892x^66+1272x^67+2077x^68+2518x^69+3618x^70+3584x^71+4760x^72+4888x^73+5903x^74+5394x^75+5866x^76+5226x^77+5300x^78+3824x^79+3503x^80+2066x^81+1860x^82+1068x^83+673x^84+344x^85+208x^86+144x^87+70x^88+50x^89+9x^90+10x^91+2x^94

The gray image is a code over GF(2) with n=300, k=16 and d=128.
This code was found by Heurico 1.11 in 66.3 seconds.