The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  0  2  0  1  0  1  1  1  2  2  0  2  0  2  1  1  1  0  2  1  1  1  1  1  1  0  0  2  1  1  2  1  1  4  4  1  2  1  1  1  2  0  4  1  0  1  1  2  1  1
 0  2  0  6  0  6  0  6  0  6  0  6  6  4  0  6  2  4  6  0  6  0  4  2  6  2  0  0  6  2  6  2  6  2  0  4  4  6  6  2  6  2  6  6  0  2  2  6  4  4  6  2  4  4  2  2  6  6  2  6  4  6  2  0  2  0  2  0  2  6  2  2  6  2  0  6  6  0  0
 0  0  4  0  0  0  0  0  0  0  0  0  0  4  4  0  0  4  4  0  4  0  4  4  0  4  0  4  0  4  0  4  0  0  0  4  0  0  0  4  4  4  0  0  4  4  4  4  4  0  0  4  4  4  0  4  0  4  0  0  0  4  0  0  0  0  0  4  0  4  4  4  0  4  0  0  0  0  0
 0  0  0  4  0  0  0  0  0  0  0  0  4  0  0  0  4  0  4  0  4  0  0  0  0  4  0  0  4  4  0  4  4  0  0  0  0  4  4  0  4  4  0  0  4  4  0  0  4  4  0  4  0  4  4  0  4  0  4  4  0  4  0  4  0  4  0  4  4  4  4  0  4  0  4  4  0  0  0
 0  0  0  0  4  0  0  0  0  0  0  0  0  0  4  0  0  4  0  4  0  4  4  0  0  0  4  0  4  4  4  0  4  0  0  4  4  0  4  0  4  4  0  0  0  0  0  0  0  4  4  4  0  4  0  4  0  4  4  4  4  0  4  0  4  0  4  4  4  4  0  0  4  0  4  0  4  0  0
 0  0  0  0  0  4  0  0  0  0  0  0  4  0  0  4  0  0  0  0  0  0  0  4  4  4  4  4  4  4  0  0  4  4  0  4  0  0  4  0  4  0  4  0  4  4  0  4  0  4  4  0  4  4  4  0  4  4  0  4  0  4  4  0  0  0  4  4  4  0  0  4  0  4  0  0  0  4  4
 0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  4  0  0  0  0  0  0  0  0  4  4  0  0  0  0  0  0  4  4  4  4  4  4  4  4  4  4  4  4  0  0  4  0  4  4  4  4  4  4  0  0  4  0  4  4  0  4  4  4  4  0  0  0  0  4  4  4  4  4  4  4  4
 0  0  0  0  0  0  0  4  0  0  0  4  0  0  0  4  0  0  4  4  4  0  4  4  0  0  0  0  4  0  0  4  4  4  4  0  0  0  0  0  4  0  4  0  4  0  0  0  0  4  4  4  4  4  4  4  0  4  4  4  4  0  0  4  0  0  0  0  4  0  0  0  4  4  4  0  0  4  4
 0  0  0  0  0  0  0  0  4  0  0  0  0  0  4  0  0  4  0  4  0  4  4  0  4  4  4  0  4  0  0  4  4  4  4  0  0  4  4  0  0  4  0  4  4  4  4  0  0  0  4  0  4  0  4  0  4  0  0  4  4  0  0  0  4  4  0  0  4  0  4  4  0  4  0  0  4  4  4
 0  0  0  0  0  0  0  0  0  4  0  4  0  0  0  0  4  0  4  0  0  4  4  4  4  4  4  0  4  4  4  4  0  4  0  0  4  4  0  4  0  0  0  0  4  4  0  4  0  0  0  4  4  0  0  4  0  0  0  4  0  4  4  0  0  4  0  0  0  0  4  4  0  0  4  4  0  4  4
 0  0  0  0  0  0  0  0  0  0  4  0  0  4  4  4  4  4  0  4  4  0  0  4  4  4  4  0  4  0  4  4  0  0  0  4  4  0  4  4  0  0  0  4  0  0  4  4  4  0  0  4  4  4  4  0  4  0  4  0  0  4  4  4  0  4  0  4  4  0  0  0  0  0  4  0  0  0  0

generates a code of length 79 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+114x^64+32x^66+394x^68+8x^69+296x^70+76x^71+871x^72+232x^73+984x^74+468x^75+1671x^76+784x^77+1704x^78+952x^79+2048x^80+784x^81+1408x^82+488x^83+1295x^84+232x^85+552x^86+60x^87+494x^88+8x^89+136x^90+4x^91+167x^92+8x^94+81x^96+23x^100+7x^104+2x^108

The gray image is a code over GF(2) with n=316, k=14 and d=128.
This code was found by Heurico 1.16 in 24.2 seconds.