The generator matrix

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

generates a code of length 60 over Z8 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+155x^52+84x^53+400x^54+388x^55+535x^56+632x^57+696x^58+1004x^59+717x^60+856x^61+594x^62+668x^63+465x^64+344x^65+266x^66+116x^67+135x^68+4x^69+70x^70+37x^72+22x^74+1x^76+2x^80

The gray image is a code over GF(2) with n=240, k=13 and d=104.
This code was found by Heurico 1.16 in 2.75 seconds.