The generator matrix

 1  0  1  1  1  1  1  1  1  0  1  1  1  1  0  1  1  1  1  2  1  1  1  1  2  1  1  2  1  1  1  1  1  1  1  1  1  1  1  1  0  2 2a  1  1  1  1
 0  1  1  a a+1  0 2a+3  a a+1  1  0  a 2a+3 a+1  1  2 2a+3 a+2 a+3  1  2  1 a+2 a+3  1  2 2a+1  1 a+2 3a+3 2a+3 2a+1  3  0 2a a+3 3a+3 3a+3  2  1  1  1  1 2a+2 2a+3 3a  0
 0  0 2a+2  0  2  0  2 2a 2a 2a 2a  2 2a+2 2a+2  0 2a+2  0 2a+2  0  2  2 2a 2a  2 2a+2 2a  2 2a 2a+2 2a  0 2a+2 2a+2 2a  2 2a 2a+2 2a+2  2 2a  2 2a  0  2  2  0 2a+2
 0  0  0  2 2a 2a  0 2a  2  2  0  2 2a  2  2  0  0  2  2  2  0  0  2  2  2 2a 2a  0 2a 2a 2a 2a+2  2  2 2a+2 2a+2  0 2a  2 2a+2 2a 2a 2a+2 2a+2  2  0 2a

generates a code of length 47 over GR(16,4) who´s minimum homogenous weight is 132.

Homogenous weight enumerator: w(x)=1x^0+192x^132+336x^134+729x^136+384x^138+648x^140+288x^142+378x^144+384x^146+468x^148+144x^150+117x^152+12x^156+15x^160

The gray image is a code over GF(4) with n=188, k=6 and d=132.
This code was found by Heurico 1.16 in 0.073 seconds.