The generator matrix

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

generates a code of length 36 over Z8 who´s minimum homogenous weight is 28.

Homogenous weight enumerator: w(x)=1x^0+202x^28+196x^29+842x^30+888x^31+1964x^32+2240x^33+3824x^34+3776x^35+4795x^36+3888x^37+3856x^38+2360x^39+1948x^40+816x^41+712x^42+144x^43+234x^44+28x^45+46x^46+7x^48+1x^52

The gray image is a code over GF(2) with n=144, k=15 and d=56.
This code was found by Heurico 1.16 in 16.7 seconds.