The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  0  1  0  0  1  1  1
 0  1  1  7 24 18  0 16  7 14 18  1 14  1  1  0 16  0
 0  0 15  0  0  5  0 15 15 15 10 20 15 10 20  5 20 20
 0  0  0  5  0 15 10 10  5  5  0 20 20 15 15 20  0 15
 0  0  0  0 15 20 20  5 20  0 10  5 20 20  5  5 10 15

generates a code of length 18 over Z25 who´s minimum homogenous weight is 55.

Homogenous weight enumerator: w(x)=1x^0+124x^55+120x^56+608x^60+320x^61+1000x^64+2812x^65+4320x^66+8000x^69+10160x^70+9920x^71+16000x^74+13524x^75+10320x^76+596x^80+252x^85+48x^90

The gray image is a code over GF(5) with n=90, k=7 and d=55.
This code was found by Heurico 1.16 in 2.12 seconds.