The generator matrix

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

generates a code of length 76 over Z9 who´s minimum homogenous weight is 144.

Homogenous weight enumerator: w(x)=1x^0+68x^144+180x^145+120x^146+188x^147+252x^148+102x^149+146x^150+204x^151+108x^152+122x^153+78x^154+66x^155+70x^156+96x^157+54x^158+60x^159+78x^160+12x^161+20x^162+42x^163+6x^164+22x^165+18x^166+6x^167+18x^168+6x^169+6x^170+6x^171+6x^172+6x^173+12x^175+4x^177+2x^180+2x^183

The gray image is a code over GF(3) with n=228, k=7 and d=144.
This code was found by Heurico 1.13 in 0.094 seconds.