The generator matrix

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

generates a code of length 42 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 77.

Homogenous weight enumerator: w(x)=1x^0+270x^77+386x^78+864x^79+1116x^80+1550x^81+1788x^82+2550x^83+2582x^84+2334x^85+2064x^86+1794x^87+1284x^88+630x^89+212x^90+30x^91+96x^92+22x^93+6x^94+78x^95+10x^96+12x^97+2x^99+2x^108

The gray image is a code over GF(3) with n=378, k=9 and d=231.
This code was found by Heurico 1.16 in 6.62 seconds.