The generator matrix

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

generates a code of length 10 over Z49 who´s minimum homogenous weight is 49.

Homogenous weight enumerator: w(x)=1x^0+42x^49+144x^56+2058x^60+66x^63+90x^70

The gray image is a code over GF(7) with n=70, k=4 and d=49.
This code was found by Heurico 1.16 in 0.00089 seconds.