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  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 28  0 14  1  1  1  1  1  1  1
 0  1  1 31 16 48  4 19  0 36 31  1 16 19 48 36  4  7 38 26  9  9  6  6 44 20 46 46  1  1 32 32  1  1 11  7 29 38 26 28 29 17 40  3 12 40  1  7 43 44 20 21 43 37 27 31 21 36  3  2 41 17 19 39 27  2  0 29 40  1  7  1 46 41 17 25 26 24 47
 0  0 35 21 42  7 14 21  7 28 14  7 35  0  0 42 28 14 42 28  7 21 35 21 14 28  0 42 42 14  7 35 21 35 21 35  7  0 42 28 14 35  7 28 35 14 28 42 21  0 14 21  0 28 42  7  0 35 21 42 35 28 42 21 28  0 35 28 21 42 42 35 28 21  0  0  7 42 35

generates a code of length 79 over Z49 who´s minimum homogenous weight is 463.

Homogenous weight enumerator: w(x)=1x^0+1386x^463+882x^464+1344x^465+204x^469+3066x^470+1722x^471+1176x^472+36x^476+1470x^477+378x^478+672x^479+54x^483+2310x^484+1134x^485+924x^486+24x^490+24x^497

The gray image is a code over GF(7) with n=553, k=5 and d=463.
This code was found by Heurico 1.16 in 34.4 seconds.