The generator matrix

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

generates a code of length 79 over GR(16,4) who´s minimum homogenous weight is 230.

Homogenous weight enumerator: w(x)=1x^0+720x^230+531x^232+840x^234+480x^236+408x^238+153x^240+228x^242+72x^244+252x^246+93x^248+108x^250+48x^252+108x^254+24x^256+24x^258+3x^264+3x^280

The gray image is a code over GF(4) with n=316, k=6 and d=230.
This code was found by Heurico 1.16 in 47.4 seconds.