The generator matrix

 1  0  0  1  1  1  1  1  1  1 35  1  1  1  1  1  7  1  1  1  1  1  1 14  1  1  1  1  1  1  1 28  1  1  1  1  1  1 28  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 35  1  1  1  1  1 42 14  0  1  1  1  1  1  0  1  1  1 14  1  1 42  1  1  1  1  1  1  1  1  1  1  1 42  1  1  1  1  1  1  1  1
 0  1  0 35 21 42  1 36 31 17  1 29 48 34 38 46  1  5 24 16 18 32 47  1 12 43  4 20 12 23 36  1 29  9 30 26 21 43  1  3 11 10 25 40  9  2  6 41 47 39 41  6  2 44 14 48 38  1  1 17 28  8 28  1  1  1 16 19 19 37 22  1 26 10 39  1 12 14  1 19 36 43  0 33 37 14 25 21 42 39  1 20 28 31 23  6 28  1 44
 0  0  1 36 31 16 30 17 21 44  9 48  7 43 10 13 47 22  6 23 38 40 39 22 41  8 35 46  2 25  5 25 18  1 31 10 33 14  6 40 43  1  4 47 34 12 33  3 14 37  6 16 23 39  4 21 18 21 24  2 48 28 14  9  1 48 17 30 38  5 18  8  8 43  1 42  4 28 25 47 45 25 41 44 28 22 26 25 47 41  3 12 45  7 29 38 35 27 37

generates a code of length 99 over Z49 who´s minimum homogenous weight is 575.

Homogenous weight enumerator: w(x)=1x^0+882x^575+210x^576+840x^577+672x^578+1050x^579+2772x^580+5082x^581+5796x^582+1092x^583+2898x^584+2478x^585+1806x^586+5670x^587+6546x^588+6678x^589+1176x^590+3612x^591+2688x^592+1932x^593+6678x^594+6240x^595+6216x^596+2352x^597+3360x^598+2142x^599+1806x^600+3822x^601+5610x^602+5796x^603+1344x^604+3696x^605+2310x^606+1638x^607+3696x^608+3558x^609+3444x^610+42x^616+18x^623

The gray image is a code over GF(7) with n=693, k=6 and d=575.
This code was found by Heurico 1.16 in 7.63 seconds.