The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  0  2  0  2  0  2  0  2  4  2  4  2  4  2  4  1  1  1  1  1  1  1
 0  2  0  6  0  6  0  2  4  6  4  2  4  6  4  2  6  2  6  2  6  2  6  2  2  2  2  2  2  2  2  2  0  0  0  4  0  4  4
 0  0  4  0  0  4  4  4  4  0  4  0  0  4  0  4  0  0  4  4  0  0  4  4  4  4  0  0  4  4  0  0  0  0  4  4  4  4  0
 0  0  0  4  4  4  4  0  0  0  4  4  4  0  0  4  0  4  4  0  4  0  0  4  0  4  4  0  4  0  0  4  0  4  4  0  0  4  4

generates a code of length 39 over Z8 who´s minimum homogenous weight is 38.

Homogenous weight enumerator: w(x)=1x^0+14x^38+96x^39+14x^40+1x^46+1x^48+1x^62

The gray image is a code over GF(2) with n=156, k=7 and d=76.
This code was found by Heurico 1.16 in 0.113 seconds.