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  1  1  7  1  1  1  1  1
 0  7  0  0  0  7  7 28  0 21  7 42 14 42  0 35 28 14 21  7  7 28 35 14  7  0 21  0 14  0
 0  0  7  0  0 35 28 35  7 28 35 35  7  7  7 21 21 28 35  7  0 42 14 28  7 42 35  7 28  0
 0  0  0  7  0 35 21 21 35 35  7 42  0 14 42 14 21  7 35 21 21 14  0 28 28  7  7 28  0  0
 0  0  0  0  7 35 42  7 42  7  7  0 14  7  7 28 42 28 28  0 21 35 21 28 14 28  7 35 35 21

generates a code of length 30 over Z49 who´s minimum homogenous weight is 147.

Homogenous weight enumerator: w(x)=1x^0+156x^147+804x^154+1536x^161+1986x^168+14406x^174+2796x^175+86436x^181+3060x^182+3366x^189+2178x^196+822x^203+102x^210

The gray image is a code over GF(7) with n=210, k=6 and d=147.
This code was found by Heurico 1.16 in 5.56 seconds.