The generator matrix

 1  0  0  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 28  1 42  1  1  1  1  1  1  1  1 21  1  1  1  1  1  1  1  1  1 42  7 21  1  1  1  1  7  1  1  1  1  1 35  1  1  1  1  1  1  1  1
 0  1  0 36 31 16 35 17  1 48  1 34  4  3 25 27 37  9 33 46 29 44 26 41  7 47 40 24  6 30  1  8  1 39 38 19 16 41 22 42 45  1 43 18 15 13 45 36 33 26 24  1  1  1 17 48 40  8  1 11 38 34 32 29  1 12 45 30 12  5 32  6 44
 0  0  1  5 31 34 36  4 16 38 25 29 40  6 44  2 30 21 26 35 24 46 16 27 33 10 13 43  7 38 48  1 32 41 35  9 13 39 18 17  2 22  3 44 15 22 33 14 22  0  6 21 16 47 24 37 20  7 27 41 36 14 45 15 22 13 30 37 17 28  5 32 15

generates a code of length 73 over Z49 who´s minimum homogenous weight is 422.

Homogenous weight enumerator: w(x)=1x^0+3948x^422+84x^423+42x^424+1512x^425+2142x^426+1998x^427+4662x^428+11844x^429+924x^430+714x^431+2814x^432+3108x^433+3120x^434+6510x^435+14574x^436+1428x^437+504x^438+3948x^439+3234x^440+3054x^441+5334x^442+14784x^443+1680x^444+798x^445+4074x^446+3864x^447+2388x^448+4074x^449+10416x^450+36x^455+6x^462+12x^469+12x^476+6x^483

The gray image is a code over GF(7) with n=511, k=6 and d=422.
This code was found by Heurico 1.16 in 98.2 seconds.