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  2  2  1  1  0  0  1  1  2  0  1  2  1  1  2  4  1  1  2  1  1  1  0  4  1  1
 0  2  0  2  0  0  2  6  0  4  6  2  0  2  2  4  4  6  0  2  6  2  2  6  6  0  4  0  0  2  2  4  4  6  0  0  2  2  2  4  6  4  4  6  2  2  2  0  0
 0  0  2  2  0  6  2  0  4  2  0  2  0  6  4  2  2  4  0  6  6  4  0  4  0  2  2  2  2  2  6  2  2  2  6  0  6  2  2  0  0  2  4  4  0  4  6  0  0
 0  0  0  4  0  0  0  0  4  4  4  4  4  0  4  0  0  0  0  4  0  0  4  0  4  4  0  0  0  4  4  4  4  4  0  4  4  0  4  0  0  0  4  4  4  4  4  4  4
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  0  0  0  0  4  4  4  4  0  0  4  4  4  4  0  4  0  0  0  4  4  0  4  4  4  0  0  0  0  4  4  0  4  4
 0  0  0  0  0  4  0  0  0  4  0  0  4  4  4  4  4  4  4  0  4  0  0  0  0  4  0  0  0  4  4  0  0  0  4  4  4  0  0  4  0  4  4  0  0  4  0  0  0
 0  0  0  0  0  0  4  0  4  4  4  4  4  0  4  4  4  4  4  4  4  0  0  4  4  4  4  0  4  0  0  0  4  0  4  0  4  4  4  0  4  0  4  0  4  4  4  0  0
 0  0  0  0  0  0  0  4  0  0  0  4  0  4  4  0  4  4  0  0  4  0  0  4  4  4  4  4  4  0  4  4  0  4  0  4  4  4  0  0  0  4  4  0  4  0  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+64x^40+166x^42+16x^43+367x^44+96x^45+382x^46+240x^47+581x^48+320x^49+540x^50+240x^51+460x^52+96x^53+252x^54+16x^55+155x^56+62x^58+27x^60+6x^62+6x^64+2x^68+1x^72

The gray image is a code over GF(2) with n=196, k=12 and d=80.
This code was found by Heurico 1.16 in 0.733 seconds.