The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  7 14 18  0 16  5 16  5 21 14 19 19
 0  0 15 10  5  0 20 10  5  0 15  5 15 10 20

generates a code of length 15 over Z25 who´s minimum homogenous weight is 54.

Homogenous weight enumerator: w(x)=1x^0+360x^54+48x^55+300x^56+480x^59+36x^60+1200x^61+660x^64+24x^65+12x^70+4x^75

The gray image is a code over GF(5) with n=75, k=5 and d=54.
This code was found by Heurico 1.16 in 0.00408 seconds.