The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  3  1  1  1  3  1  1  3  1  1  1  3  1  1  1  1  1  3  3  1  3  1  1  1  3  1  3  3
 0  3  0  0  0  0  0  0  0  0  3  6  6  3  3  3  0  6  3  6  3  0  3  0  6  3  0  6  3  6  6  6  3  3  3  0  6  6  0  0  0  3  6  3  0  3  6  6  3  6  6  6  3  0  6  3  6  3  6  3  3  3  0  3  3  0  3  3  3  3  0  6  0  6  6  0  0  3  0  3  3
 0  0  3  0  0  0  0  3  6  6  6  0  0  6  3  6  3  0  3  3  0  6  6  0  3  3  6  0  3  0  6  6  6  3  6  0  6  6  3  6  3  6  6  6  0  6  0  6  0  3  0  6  0  3  0  0  6  0  0  6  6  3  6  0  3  0  3  6  6  3  0  3  6  3  0  3  0  3  6  6  0
 0  0  0  3  0  0  3  6  0  6  0  0  6  3  3  6  0  3  0  6  0  6  6  0  6  0  3  6  6  3  3  3  6  0  0  6  6  3  6  3  0  6  6  3  3  3  6  6  6  0  3  6  0  3  0  0  3  3  0  0  6  6  0  3  3  6  6  6  3  0  3  0  6  0  3  0  0  0  3  0  3
 0  0  0  0  3  0  6  6  3  0  6  6  6  0  6  6  0  6  3  0  6  6  0  3  6  0  6  3  0  3  0  3  0  6  0  6  0  6  3  0  6  3  6  3  6  6  0  6  0  3  3  0  3  6  0  3  0  6  0  6  6  3  0  6  0  6  0  3  6  6  0  6  3  0  3  6  6  3  0  0  3
 0  0  0  0  0  3  6  6  6  6  6  6  3  6  3  3  6  3  6  6  6  6  0  6  0  3  0  0  6  3  6  0  6  3  0  3  3  0  3  0  0  3  6  3  3  3  3  0  3  3  6  6  3  6  6  6  3  6  3  0  3  6  3  6  0  6  3  0  6  6  3  6  0  6  0  6  3  6  6  0  0

generates a code of length 81 over Z9 who´s minimum homogenous weight is 150.

Homogenous weight enumerator: w(x)=1x^0+90x^150+18x^151+108x^153+102x^154+112x^156+222x^157+100x^159+294x^160+68x^162+360x^163+62x^165+318x^166+32x^168+120x^169+38x^171+24x^172+22x^174+30x^177+10x^180+14x^183+12x^186+12x^189+4x^192+4x^195+4x^198+2x^201+2x^207+2x^213

The gray image is a code over GF(3) with n=243, k=7 and d=150.
This code was found by Heurico 1.16 in 0.324 seconds.