The generator matrix

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

generates a code of length 75 over Z9 who´s minimum homogenous weight is 146.

Homogenous weight enumerator: w(x)=1x^0+54x^146+126x^147+90x^148+180x^149+66x^150+42x^151+42x^152+14x^153+24x^154+42x^155+10x^156+6x^157+8x^162+2x^165+6x^167+12x^168+4x^171

The gray image is a code over GF(3) with n=225, k=6 and d=146.
This code was found by Heurico 1.16 in 0.0549 seconds.