The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  7  1  1  1  1  1  1  7  1  1  7  1  1  1  1  1  1
 0  1  1 31 16 48  4 19  0 36 31 19 48  1 16 46  7 38 29  1  9  4  6 26  9 46  7 42 22  1  6 24 26 42 15 32
 0  0 35 21 42  7 14 21  7 42  0 35 14 28 28 42 21 28 28 14 14  0 28 42 21  7  7 14  7 42  0 42 14 35 21 35

generates a code of length 36 over Z49 who´s minimum homogenous weight is 207.

Homogenous weight enumerator: w(x)=1x^0+2100x^207+1890x^208+108x^210+3150x^214+1512x^215+216x^217+5040x^221+2772x^222+18x^252

The gray image is a code over GF(7) with n=252, k=5 and d=207.
This code was found by Heurico 1.16 in 63.6 seconds.