The generator matrix

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

generates a code of length 65 over Z8 who´s minimum homogenous weight is 58.

Homogenous weight enumerator: w(x)=1x^0+112x^58+92x^59+384x^60+280x^61+398x^62+228x^63+468x^64+320x^65+414x^66+292x^67+361x^68+216x^69+224x^70+92x^71+101x^72+16x^73+42x^74+18x^76+22x^78+9x^80+4x^82+1x^84+1x^88

The gray image is a code over GF(2) with n=260, k=12 and d=116.
This code was found by Heurico 1.16 in 0.781 seconds.