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

generates a code of length 60 over Z8 who´s minimum homogenous weight is 58.

Homogenous weight enumerator: w(x)=1x^0+7x^58+30x^59+72x^60+8x^62+7x^64+2x^75+1x^90

The gray image is a code over GF(2) with n=240, k=7 and d=116.
This code was found by Heurico 1.16 in 0.0559 seconds.