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  1  7  1  1  1  7  1  1  1  1  1  1  1  1  1 35  1  1  1 35  1  1  1  1 14  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 31 16 48  4 19  0 36 31  1 16 19 48  4 36  7 38 26  9  6 46  1  9  6 46  1  7 29 38 26 30 18 21 15 45  1  2 40 18  1 20 40 39 12  1 30 21  7 42 21 15  1 29 36 43 42 16  9 44 29  2 42  3 46 39  4 39
 0  0 35 21 42  7 14 21  7 28 14  7 35  0  0 28 42 14 42 28  7 35  7 35 21 21 35 21 35  7  0 42 28 42 21  0  7 42 14 14  0 14 28  7 21 35 28  0  0 42 28 35  7 28 42 21 14 21 28 35 14  0 42  7 42 28 14 42 35

generates a code of length 69 over Z49 who´s minimum homogenous weight is 404.

Homogenous weight enumerator: w(x)=1x^0+1806x^404+420x^405+714x^406+1764x^407+3150x^411+630x^412+696x^413+588x^414+1218x^418+1008x^419+942x^420+1764x^421+2058x^425+6x^427+12x^434+24x^441+6x^448

The gray image is a code over GF(7) with n=483, k=5 and d=404.
This code was found by Heurico 1.16 in 0.339 seconds.