The generator matrix

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

generates a code of length 60 over Z8 who´s minimum homogenous weight is 53.

Homogenous weight enumerator: w(x)=1x^0+70x^53+151x^54+280x^55+325x^56+336x^57+375x^58+396x^59+378x^60+344x^61+379x^62+320x^63+291x^64+176x^65+105x^66+72x^67+20x^68+26x^69+8x^70+12x^71+5x^72+8x^73+4x^74+4x^75+2x^76+2x^78+4x^79+2x^80

The gray image is a code over GF(2) with n=240, k=12 and d=106.
This code was found by Heurico 1.16 in 0.762 seconds.