The generator matrix

 1  0  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  7  1  1  1  1  1  1  7  1  1  1  1  1  1 28  1  1 28  1
 0  1  1 31 16  0  7  7 48 48 14  6  6 41 20 14  4 19 20 36 19 31 16  4  1 38 26 36  1  9 46 38 43  9 46  1 26 37 43 10 39 47  1 22 39  1 22
 0  0 35 21 42  7 14 28  7 35 42 28 14 21  0 35 28 42 42 21  0 28 21 14 14  7 14  0 28 28 21 14  7  0 42 42 35  7 14  0 35 21 35 28  0  7 42

generates a code of length 47 over Z49 who´s minimum homogenous weight is 273.

Homogenous weight enumerator: w(x)=1x^0+1296x^273+1890x^274+1764x^275+2076x^280+1512x^281+588x^282+3114x^287+2772x^288+1764x^289+18x^294+6x^301+6x^315

The gray image is a code over GF(7) with n=329, k=5 and d=273.
This code was found by Heurico 1.16 in 0.0864 seconds.