The generator matrix

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

generates a code of length 90 over Z8 who´s minimum homogenous weight is 78.

Homogenous weight enumerator: w(x)=1x^0+64x^78+150x^79+258x^80+656x^81+580x^82+1242x^83+1136x^84+2054x^85+1461x^86+2730x^87+1665x^88+3300x^89+1957x^90+3506x^91+1865x^92+2952x^93+1451x^94+2022x^95+928x^96+1076x^97+515x^98+506x^99+226x^100+178x^101+80x^102+74x^103+47x^104+24x^105+27x^106+10x^107+13x^108+7x^110+5x^112+1x^114+1x^118

The gray image is a code over GF(2) with n=360, k=15 and d=156.
This code was found by Heurico 1.16 in 57.2 seconds.