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

generates a code of length 50 over GR(81,9) who´s minimum homogenous weight is 369.

Homogenous weight enumerator: w(x)=1x^0+352x^369+360x^370+144x^371+2504x^378+8856x^379+1800x^380+9888x^387+39312x^388+7344x^389+37592x^396+138312x^397+20160x^398+59096x^405+180576x^406+23040x^407+760x^414+696x^423+400x^432+224x^441+24x^450

The gray image is a code over GF(9) with n=450, k=6 and d=369.
This code was found by Heurico 1.16 in 28.4 seconds.