The generator matrix

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

generates a code of length 66 over GR(16,4) who´s minimum homogenous weight is 184.

Homogenous weight enumerator: w(x)=1x^0+324x^184+252x^185+192x^186+753x^188+672x^189+408x^190+1194x^192+1068x^193+456x^194+1179x^196+1320x^197+720x^198+1668x^200+1380x^201+816x^202+1260x^204+1056x^205+408x^206+441x^208+372x^209+72x^210+210x^212+24x^213+42x^216+27x^220+21x^224+15x^228+18x^232+12x^236+3x^240

The gray image is a code over GF(4) with n=264, k=7 and d=184.
This code was found by Heurico 1.16 in 1.63 seconds.