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

generates a code of length 65 over GR(16,4) who´s minimum homogenous weight is 188.

Homogenous weight enumerator: w(x)=1x^0+528x^188+264x^189+576x^191+873x^192+264x^193+384x^196+48x^197+384x^200+240x^204+168x^205+192x^207+144x^208+24x^209+6x^224

The gray image is a code over GF(4) with n=260, k=6 and d=188.
This code was found by Heurico 1.16 in 0.57 seconds.