The generator matrix

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

generates a code of length 63 over Z8 who´s minimum homogenous weight is 52.

Homogenous weight enumerator: w(x)=1x^0+159x^52+554x^53+1188x^54+2022x^55+3037x^56+4596x^57+5657x^58+8266x^59+9163x^60+11296x^61+12369x^62+13524x^63+12590x^64+12412x^65+9457x^66+8098x^67+5814x^68+4342x^69+2733x^70+1772x^71+980x^72+496x^73+266x^74+172x^75+60x^76+32x^77+10x^78+2x^79+4x^80

The gray image is a code over GF(2) with n=252, k=17 and d=104.
This code was found by Heurico 1.11 in 210 seconds.