The generator matrix

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

generates a code of length 42 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 75.

Homogenous weight enumerator: w(x)=1x^0+508x^75+1416x^76+2148x^77+4360x^78+6450x^79+8766x^80+12204x^81+15582x^82+20280x^83+24050x^84+22998x^85+22146x^86+16580x^87+10644x^88+4656x^89+2582x^90+1098x^91+258x^92+156x^93+84x^94+60x^95+66x^96+42x^97+6x^98+6x^100

The gray image is a code over GF(3) with n=378, k=11 and d=225.
This code was found by Heurico 1.16 in 47.1 seconds.