The generator matrix

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

generates a code of length 68 over Z25 who´s minimum homogenous weight is 261.

Homogenous weight enumerator: w(x)=1x^0+660x^261+940x^262+80x^263+800x^264+372x^265+1340x^266+1440x^267+160x^268+760x^269+264x^270+1200x^271+1100x^272+120x^273+600x^274+248x^275+1160x^276+980x^277+60x^278+520x^279+120x^280+820x^281+780x^282+80x^283+320x^284+104x^285+320x^286+260x^287+12x^290+4x^305

The gray image is a code over GF(5) with n=340, k=6 and d=261.
This code was found by Heurico 1.16 in 0.475 seconds.