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

generates a code of length 73 over Z8 who´s minimum homogenous weight is 58.

Homogenous weight enumerator: w(x)=1x^0+68x^58+44x^59+172x^60+118x^61+307x^62+276x^63+506x^64+558x^65+792x^66+1038x^67+1317x^68+1834x^69+2091x^70+2764x^71+2876x^72+3078x^73+2983x^74+2674x^75+2200x^76+2026x^77+1321x^78+1100x^79+783x^80+474x^81+457x^82+242x^83+237x^84+86x^85+126x^86+52x^87+70x^88+18x^89+34x^90+2x^91+26x^92+10x^94+4x^96+1x^98+1x^102+1x^106

The gray image is a code over GF(2) with n=292, k=15 and d=116.
This code was found by Heurico 1.16 in 72.7 seconds.