The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  7  0  7 21 21  0  7 21 14 14 14  0  7 21 14 28 28 28 35 35 35
 0  0  7 35 21 14 28 14  7 35  7 28 35 28  0 14 28 21  0  7 21 14

generates a code of length 22 over Z49 who´s minimum homogenous weight is 126.

Homogenous weight enumerator: w(x)=1x^0+180x^126+2058x^132+96x^133+18x^140+12x^147+36x^154

The gray image is a code over GF(7) with n=154, k=4 and d=126.
This code was found by Heurico 1.16 in 0.00362 seconds.