The generator matrix

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

generates a code of length 66 over GR(16,4) who´s minimum homogenous weight is 180.

Homogenous weight enumerator: w(x)=1x^0+129x^180+72x^181+132x^182+360x^183+1389x^184+804x^185+492x^186+996x^187+3507x^188+1272x^189+744x^190+1596x^191+5112x^192+1872x^193+1116x^194+2124x^195+6780x^196+2592x^197+1104x^198+2856x^199+7296x^200+2484x^201+1104x^202+2412x^203+6273x^204+2088x^205+936x^206+1596x^207+3309x^208+888x^209+444x^210+324x^211+813x^212+216x^213+60x^214+24x^215+114x^216+12x^218+45x^220+18x^224+12x^228+9x^232+3x^236+6x^244

The gray image is a code over GF(4) with n=264, k=8 and d=180.
This code was found by Heurico 1.16 in 19.5 seconds.