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

generates a code of length 65 over Z8 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+92x^52+118x^53+267x^54+306x^55+455x^56+596x^57+687x^58+932x^59+1353x^60+1794x^61+2168x^62+2694x^63+3106x^64+3554x^65+3210x^66+2666x^67+2261x^68+1814x^69+1313x^70+992x^71+692x^72+464x^73+438x^74+238x^75+210x^76+154x^77+99x^78+40x^79+22x^80+18x^81+4x^82+4x^83+5x^86+1x^98

The gray image is a code over GF(2) with n=260, k=15 and d=104.
This code was found by Heurico 1.16 in 61.8 seconds.