The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  7  1  1  1  1  1  1  1  1  1  1  1  7  1  1  1  1 35  1  1  1 14  1  1  1  1  1  1  1  1  1 35  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1 31 16 48  4 19  0 36 31  1 16 19  7 48 38  4  7 38  6 46  1  6 27 36 26 43 26  9 14 47  9 46  1 29 10  2 18  1  2 18 47  1 21 29 31  6 21  1 10 27 39  1 44 38 34 28 44 36 34 43 37 21 45 28  9 43 45 27 37 14 10 48 29
 0  0 35 21 42  7 14 21  7 28 14  7 35  0 28 42  7 35 14 42 35 28 35 21  0 42 28  0  7 14 35 42 28 21 21 14  0  7 42 42  0  7 35 28 21 21 28 14 14 28 21 42  0 14 28  0 21 21 42  0  7  7 21  0 14 28  7 21 42 28 14 42 35  0 42

generates a code of length 75 over Z49 who´s minimum homogenous weight is 440.

Homogenous weight enumerator: w(x)=1x^0+2100x^440+78x^441+630x^442+1764x^443+4410x^447+150x^448+504x^449+588x^450+1050x^454+48x^455+924x^456+1764x^457+2730x^461+36x^462+6x^469+18x^476+6x^483

The gray image is a code over GF(7) with n=525, k=5 and d=440.
This code was found by Heurico 1.16 in 0.184 seconds.