The generator matrix

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

generates a code of length 21 over Z49 who´s minimum homogenous weight is 115.

Homogenous weight enumerator: w(x)=1x^0+630x^115+252x^116+156x^119+588x^120+3150x^122+672x^123+96x^126+3528x^127+6510x^129+1134x^130+36x^133+24x^140+30x^147

The gray image is a code over GF(7) with n=147, k=5 and d=115.
This code was found by Heurico 1.16 in 0.829 seconds.