The generator matrix

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

generates a code of length 80 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 149.

Homogenous weight enumerator: w(x)=1x^0+246x^149+396x^150+324x^151+1368x^152+1466x^153+1674x^154+3684x^155+3100x^156+3636x^157+5544x^158+4732x^159+4356x^160+7350x^161+4962x^162+4266x^163+4554x^164+2860x^165+1656x^166+1452x^167+416x^168+126x^169+246x^170+158x^171+198x^173+82x^174+120x^176+14x^177+18x^179+24x^180+6x^182+6x^183+4x^186+4x^189

The gray image is a code over GF(3) with n=720, k=10 and d=447.
This code was found by Heurico 1.16 in 12.2 seconds.