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

generates a code of length 35 over GR(81,9) who´s minimum homogenous weight is 252.

Homogenous weight enumerator: w(x)=1x^0+400x^252+216x^256+1728x^257+1160x^261+648x^264+5184x^265+18144x^266+1072x^270+10368x^273+41472x^274+98496x^275+1120x^279+41472x^282+110592x^283+196560x^284+1112x^288+1024x^297+496x^306+176x^315

The gray image is a code over GF(9) with n=315, k=6 and d=252.
This code was found by Heurico 1.16 in 17.9 seconds.