The generator matrix

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

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+46x^75+96x^76+210x^77+546x^78+510x^79+756x^80+2188x^81+1398x^82+1626x^83+4128x^84+1824x^85+1770x^86+2824x^87+984x^88+468x^89+150x^90+42x^91+30x^92+46x^93+6x^94+12x^96+8x^99+8x^102+2x^105+2x^108+2x^111

The gray image is a code over GF(3) with n=378, k=9 and d=225.
This code was found by Heurico 1.16 in 0.705 seconds.