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 42  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  1  1 21  1  1  1 14  1  1  1  1  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  1  7 21 43 38 26 22 10 33 22 43 44 23 21  3 33 20 14 13 10 47 14 47  3 48 23  1 22 11 10 30  6 33  1  1  4 21  9  1 20  0 43 40 46 31
 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 28 35 21  0  7 14  7  0 42 14 21 28  7 14  7  0 35 35 14 28 35  7  7 21 42  0 42  0 14 42 28 14 35 21  0 42 42 35 28 21 28 28 21 28 28

generates a code of length 80 over Z49 who´s minimum homogenous weight is 469.

Homogenous weight enumerator: w(x)=1x^0+2442x^469+7038x^476+2610x^483+4680x^490+18x^497+18x^511

The gray image is a code over GF(7) with n=560, k=5 and d=469.
This code was found by Heurico 1.16 in 0.21 seconds.