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

generates a code of length 49 over Z8 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+157x^40+4x^41+356x^42+44x^43+539x^44+196x^45+836x^46+460x^47+1247x^48+620x^49+1202x^50+484x^51+786x^52+204x^53+498x^54+36x^55+281x^56+162x^58+58x^60+18x^62+2x^64+1x^76

The gray image is a code over GF(2) with n=196, k=13 and d=80.
This code was found by Heurico 1.16 in 2.94 seconds.