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  2  2  2  2  2  1  2  2  1  1  2  2  1  2  0  1  1  2
 0  2  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  2  2  2  2  0  0  2  2  2  0  2  2  2  0  2  0  2  0  2  0  2  2  0  0  2  0  0  2  2  0  0  0  2
 0  0  2  0  0  0  0  0  0  0  0  0  2  0  0  2  2  2  2  2  2  0  0  0  0  0  2  2  2  2  2  0  2  0  0  0  2  0  2  0  2  0  0  2  2  0  0  0  2  0
 0  0  0  2  0  0  0  0  0  0  0  0  2  2  2  2  2  0  2  2  2  0  2  2  2  0  2  0  0  2  2  2  2  2  2  2  0  0  2  0  0  0  0  2  0  0  2  0  0  2
 0  0  0  0  2  0  0  0  0  0  0  2  0  2  2  0  2  2  2  0  2  2  2  0  0  0  0  0  2  0  0  0  2  0  0  2  0  2  2  0  0  0  2  0  2  2  2  0  2  0
 0  0  0  0  0  2  0  0  0  0  0  2  0  0  2  2  2  2  2  0  0  2  0  0  2  2  0  0  0  2  2  0  0  0  2  2  0  2  0  2  2  2  0  0  0  2  0  0  2  0
 0  0  0  0  0  0  2  0  0  0  2  0  0  0  2  2  0  0  2  0  0  2  2  0  2  0  2  0  2  0  2  0  2  2  2  0  2  0  2  2  0  2  0  2  0  2  0  0  2  2
 0  0  0  0  0  0  0  2  0  0  2  0  0  2  0  0  2  0  0  2  0  2  2  0  0  2  2  2  0  0  2  2  0  2  2  2  0  0  0  2  2  0  2  2  0  0  0  2  2  2
 0  0  0  0  0  0  0  0  2  0  2  2  2  2  0  0  0  0  2  0  0  0  2  2  2  2  0  0  0  2  0  2  0  0  2  2  2  0  2  0  2  2  2  2  0  2  0  0  0  2
 0  0  0  0  0  0  0  0  0  2  2  2  2  0  0  2  2  2  2  2  0  2  0  2  0  2  0  2  2  0  0  2  2  2  2  2  2  2  0  0  0  2  2  2  0  0  0  2  2  0

generates a code of length 50 over Z4 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+128x^40+22x^42+285x^44+112x^46+376x^48+236x^50+386x^52+128x^54+200x^56+14x^58+110x^60+47x^64+2x^68+1x^76

The gray image is a code over GF(2) with n=100, k=11 and d=40.
This code was found by Heurico 1.16 in 0.689 seconds.