The generator matrix

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

generates a code of length 63 over GR(16,4) who´s minimum homogenous weight is 169.

Homogenous weight enumerator: w(x)=1x^0+240x^169+372x^170+396x^171+1536x^172+1776x^173+1608x^174+1920x^175+3999x^176+4380x^177+3648x^178+4260x^179+7692x^180+8364x^181+6936x^182+7212x^183+13305x^184+12348x^185+10884x^186+9396x^187+18561x^188+15804x^189+12600x^190+11124x^191+18585x^192+16176x^193+10632x^194+9228x^195+13398x^196+10308x^197+6552x^198+4452x^199+5448x^200+3612x^201+1824x^202+1104x^203+1242x^204+708x^205+240x^206+60x^207+123x^208+12x^209+33x^212+21x^216+15x^220+3x^224+3x^228+3x^240

The gray image is a code over GF(4) with n=252, k=9 and d=169.
This code was found by Heurico 1.16 in 225 seconds.