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

generates a code of length 80 over Z9 who´s minimum homogenous weight is 156.

Homogenous weight enumerator: w(x)=1x^0+56x^156+150x^157+78x^158+90x^159+108x^160+60x^161+60x^162+42x^163+24x^164+16x^165+6x^166+6x^168+2x^171+6x^174+12x^175+4x^177+6x^178+2x^186

The gray image is a code over GF(3) with n=240, k=6 and d=156.
This code was found by Heurico 1.16 in 0.0805 seconds.