The generator matrix

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

generates a code of length 68 over Z25 who´s minimum homogenous weight is 260.

Homogenous weight enumerator: w(x)=1x^0+980x^260+400x^262+360x^263+2652x^265+560x^267+420x^268+1964x^270+420x^272+1080x^273+2140x^275+880x^277+640x^278+2084x^280+240x^282+740x^285+28x^290+8x^300+16x^305+4x^310+4x^315+4x^330

The gray image is a code over GF(5) with n=340, k=6 and d=260.
This code was found by Heurico 1.16 in 2.77 seconds.