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  1  1  1  1  1  7  7  1  1 21 21  1  1  1  1  1  1  1 42  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  7  1  1  1  1  0  1  1  1 42  1  1  1  1  1  7  1  1  1  1 21  1  1  1  1 42  1  1
 0  1  1 31 16 48  4 19  0 36 31  1 16 19 48  4 36  7 38 26  9  9  6  6 44 20 46 46  1  1 32 32  1  1 11  7 28 26 40 40 12  1 29 29 38 17  3  7 28 43 43 44 37 20 27 31  0 36  3 17 23 27 37 41  1 29 26 21 12  1 32 11 23  1 38 18 19  1 35 42 41  3  5 21  1 34 15 11  9  1 18  5
 0  0 35 21 42  7 14 21  7 28 14  7 35  0  0 28 42 14 42 28  7 21 35 21 14 28  0 42 42 14  7 35 21 35 21 35 28 42  7 14 35 28  7 14 35  0  7 21 42  0 21 28  0 14 42 28 28 35 14  7  7 28 14 35 35 28  7 21 14 14 14  7 21 21  0 21 42 42 42 21 42 28 35  0  0  0 21 42 35  7 28 21

generates a code of length 92 over Z49 who´s minimum homogenous weight is 543.

Homogenous weight enumerator: w(x)=1x^0+3234x^543+2394x^544+126x^546+3318x^550+2016x^551+126x^553+1302x^557+252x^558+66x^560+2436x^564+1512x^565+6x^567+6x^574+12x^588

The gray image is a code over GF(7) with n=644, k=5 and d=543.
This code was found by Heurico 1.16 in 44.5 seconds.