The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  5  1  1  1  1  1 10  1  1  1  1  1 20  1  1  1  1  1 15  1  1  1  1  1  0  1  1  1  1  1  5  1  1  1  1  1 10  1  1  1  1  1 20  1  1  1  1  1 15  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
 0  1 16  7 14 18  5 21 12 19 23  1 10 11 17  9  3  1 20  6  2  4 13  1 15  1 22 24  8  1  0 16  7 14 18  1  5 21 12 19 23  1 10 11 17  9  3  1 20  6  2  4 13  1 15  1 22 24  8  1  0  5 10 16 21 11 20  6  7 12 17  2 15  1 22 14 19  9  4 24 18 23  3 13  8

generates a code of length 85 over Z25 who´s minimum homogenous weight is 340.

Homogenous weight enumerator: w(x)=1x^0+600x^340+20x^350+4x^375

The gray image is a code over GF(5) with n=425, k=4 and d=340.
This code was found by Heurico 1.16 in 0.093 seconds.