The generator matrix

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

generates a code of length 76 over Z9 who´s minimum homogenous weight is 136.

Homogenous weight enumerator: w(x)=1x^0+288x^136+606x^137+240x^138+1242x^139+1338x^140+490x^141+1776x^142+2304x^143+604x^144+2958x^145+2988x^146+748x^147+3516x^148+3672x^149+994x^150+3930x^151+4098x^152+948x^153+4008x^154+3996x^155+956x^156+3240x^157+3234x^158+798x^159+2766x^160+2274x^161+512x^162+1728x^163+1152x^164+160x^165+582x^166+450x^167+88x^168+168x^169+126x^170+14x^171+36x^172+6x^173+6x^175+4x^177+2x^183+2x^186

The gray image is a code over GF(3) with n=228, k=10 and d=136.
This code was found by Heurico 1.13 in 43.8 seconds.