The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+244x^144+582x^147+434x^150+226x^153+200x^156+206x^159+198x^162+60x^165+24x^168+4x^171+4x^174+2x^177+2x^180

The gray image is a code over GF(3) with n=228, k=7 and d=144.
This code was found by Heurico 1.16 in 0.156 seconds.