The generator matrix

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

generates a code of length 58 over GR(81,9) who´s minimum homogenous weight is 432.

Homogenous weight enumerator: w(x)=1x^0+296x^432+432x^435+360x^437+2304x^441+2664x^443+5976x^444+4176x^446+13296x^450+11448x^452+20304x^453+8640x^455+66600x^459+39096x^461+62208x^462+21240x^464+131896x^468+51768x^470+68544x^471+18072x^473+576x^477+624x^486+528x^495+264x^504+120x^513+8x^522

The gray image is a code over GF(9) with n=522, k=6 and d=432.
This code was found by Heurico 1.16 in 33.8 seconds.