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  1  1  1  1  1  1  1  1  2  2  0  1  1  1  2  1  1  0  1  1  0  1  2  1  1  2  1  1  1  4  1  2  0  4  1  1  1  1  2  2  0  4  4
 0  2  0  2  0  0  2  6  0  4  6  2  0  2  2  0  4  2  6  4  0  4  2  4  2  0  4  2  6  0  4  6  2  4  6  2  0  6  0  2  6  2  0  0  0  6  4  2  2  6  0  2  6  6  2  2  0  6  2  2  4  2  4  2  4
 0  0  2  2  0  6  2  0  4  2  0  2  0  6  4  6  2  2  4  4  4  2  0  4  6  0  6  0  0  6  2  0  4  0  0  4  6  4  6  4  6  6  2  0  6  6  2  6  2  4  2  6  0  0  4  6  6  6  4  2  2  4  2  2  4
 0  0  0  4  0  0  0  0  4  4  4  0  4  0  4  0  0  4  4  0  4  0  0  0  4  4  0  0  4  4  0  0  4  4  0  4  0  4  0  0  4  4  4  0  4  4  0  0  0  0  0  4  4  4  0  4  4  0  0  4  0  0  4  0  4
 0  0  0  0  4  0  0  0  0  0  0  0  4  0  0  0  4  4  4  4  0  4  4  0  4  4  0  4  4  0  0  4  4  4  0  4  4  0  0  4  0  4  0  0  4  4  0  4  0  4  4  0  4  0  0  0  4  4  0  0  4  0  0  4  4
 0  0  0  0  0  4  0  0  0  4  0  4  4  4  4  4  4  0  4  0  0  0  0  4  4  0  0  4  4  0  0  4  0  0  0  0  0  4  0  4  4  0  0  0  4  4  4  0  0  0  4  4  0  4  0  4  0  0  4  4  4  4  4  0  4
 0  0  0  0  0  0  4  0  4  4  4  4  4  4  4  0  0  0  4  0  4  0  0  0  0  4  0  0  4  4  4  4  0  0  4  0  4  0  4  0  4  4  4  4  0  4  4  4  0  4  0  4  0  4  4  4  0  0  4  0  4  4  0  4  0
 0  0  0  0  0  0  0  4  0  0  0  4  0  0  4  4  4  0  0  4  4  4  4  0  4  0  4  0  4  0  4  0  0  0  4  4  4  4  0  0  4  4  4  4  4  0  4  0  4  4  0  0  0  0  0  4  0  0  4  4  0  4  4  0  0

generates a code of length 65 over Z8 who´s minimum homogenous weight is 56.

Homogenous weight enumerator: w(x)=1x^0+115x^56+216x^58+453x^60+522x^62+768x^64+808x^66+572x^68+258x^70+185x^72+102x^74+67x^76+12x^78+10x^80+2x^82+4x^84+1x^96

The gray image is a code over GF(2) with n=260, k=12 and d=112.
This code was found by Heurico 1.16 in 1.13 seconds.