The generator matrix

 1  0  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  1  7  1  1  7  1  1  1  1  1
 0  1  1 31 16  0  7 36  7 36 29  4 29 28 19 48 28 31  4 16  1 48 19 22 38 46  6  9 26  1  9  6  1 23 26 38 46 22
 0  0 35 21 42  7 14 42 21 28 14 35  7 28 21 28 42  7  0 35 42 42  0 28 35 14  7  0 35 28 21 14 21 28 42  0  7 42

generates a code of length 38 over Z49 who´s minimum homogenous weight is 217.

Homogenous weight enumerator: w(x)=1x^0+42x^217+1260x^218+420x^219+630x^220+798x^221+144x^224+3360x^225+630x^226+504x^227+462x^228+108x^231+5670x^232+1008x^233+924x^234+798x^235+30x^238+6x^259+12x^266

The gray image is a code over GF(7) with n=266, k=5 and d=217.
This code was found by Heurico 1.16 in 0.0669 seconds.