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

generates a code of length 63 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+62x^48+40x^50+139x^52+6x^53+115x^54+34x^55+197x^56+110x^57+151x^58+250x^59+189x^60+396x^61+159x^62+4548x^63+163x^64+396x^65+171x^66+260x^67+127x^68+110x^69+174x^70+26x^71+82x^72+6x^73+133x^74+2x^75+55x^76+61x^78+6x^80+17x^82+2x^84+2x^86+1x^88+1x^102

The gray image is a code over GF(2) with n=252, k=13 and d=96.
This code was found by Heurico 1.16 in 5.42 seconds.