The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  3  1  1  1  1  1  1  3  1  1
 0  1  1  a 7a+7 8a+4 3a+5 8a+5 8a a+5  0 a+5 8a 8a+5 8a+4  1  a 7a+7 3a+7  1 3a+5 8a 8a+5 a+5 2a+5 7a+7 3a+5  0  a a+8  3 2a+5 8a+4 8a+3 6a+5 a+8 a+7 8a+7  1 2a+4 3a+7 a+3 a+8 4a 4a  1 3a+7  0
 0  0 3a+6  0 3a+6  3 6a+6 6a+6  6 3a 3a+6 3a  3 3a  3  3 6a+6  6 3a+6 3a+6 6a+6  3 3a 3a+3 6a+3 6a+6  3  3  0  6 3a+3 6a 3a+6 3a  0 3a+6 3a+3 3a+6 3a  0 3a+3  3 3a+3 6a  3 6a 6a+3  0
 0  0  0  3 3a+6 3a+6  3 3a  3 3a+3 6a 6a+6 6a 6a+3  0 6a+6 3a+3 3a+6  3  6 6a+6 3a 3a+6 6a+6 6a+6 6a+3 6a+3 3a 3a+6  6 3a 6a+3 3a  3 6a+6 3a 3a+3 3a+3 6a+3 6a+6  0  6 6a 3a+6  3  6 3a+3  3

generates a code of length 48 over GR(81,9) who´s minimum homogenous weight is 351.

Homogenous weight enumerator: w(x)=1x^0+200x^351+144x^353+928x^360+1152x^361+2880x^362+2808x^363+1152x^369+12096x^370+16416x^371+11016x^372+1048x^378+65664x^379+74592x^380+39528x^381+968x^387+131040x^388+115920x^389+51624x^390+816x^396+704x^405+456x^414+240x^423+48x^432

The gray image is a code over GF(9) with n=432, k=6 and d=351.
This code was found by Heurico 1.16 in 27.5 seconds.