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

generates a code of length 46 over Z4 who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+30x^45+15x^46+15x^48+2x^61+1x^62

The gray image is a code over GF(2) with n=92, k=6 and d=45.
This code was found by Heurico 1.16 in 0.133 seconds.