The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  0  1  1  1  1  1  1  1  7  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 16 48  4 19  1 19 16 36 48  4  1  0 31 38 36  7 26  6  1 14  9 26 43  3  9 20 15 10 41  9  5 43 20 42 21 26 12 28 48
 0  0 35  0 35  7 35  7 42 14  7 42  0  0 42 14 21 28 21 14 42 14 21  7 35 21 21 42 21 35 35  7 21  0 35  7  0 14 35 21 42 28 42 35 14 28  7  7 14 35
 0  0  0  7 28 28 21 42  0 42  7 42 35 28 21 21 42 21 35 35 14  0 42  0 35 21  7 35 28  7  7 21 14  0 28 14  7  7 42 21 28 14  0 35  0  7 28 14 35  0

generates a code of length 50 over Z49 who´s minimum homogenous weight is 280.

Homogenous weight enumerator: w(x)=1x^0+942x^280+42x^282+168x^283+1554x^285+1344x^286+4944x^287+756x^289+1260x^290+4158x^292+2142x^293+8160x^294+4536x^296+5208x^297+11718x^299+6090x^300+18480x^301+9072x^303+7770x^304+11382x^306+4830x^307+12540x^308+168x^315+180x^322+84x^329+72x^336+48x^343

The gray image is a code over GF(7) with n=350, k=6 and d=280.
This code was found by Heurico 1.16 in 4.69 seconds.