The generator matrix

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

generates a code of length 69 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+31x^64+100x^65+114x^66+114x^67+202x^68+150x^69+44x^70+64x^71+11x^72+44x^73+91x^74+28x^75+6x^76+2x^77+2x^78+2x^80+4x^81+2x^83+2x^84+4x^85+4x^86+1x^96+1x^98

The gray image is a code over GF(2) with n=276, k=10 and d=128.
This code was found by Heurico 1.16 in 0.175 seconds.