The generator matrix

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

generates a code of length 30 over Z8 who´s minimum homogenous weight is 22.

Homogenous weight enumerator: w(x)=1x^0+106x^22+518x^23+1101x^24+2212x^25+3438x^26+4882x^27+6968x^28+8568x^29+9336x^30+8902x^31+7414x^32+5304x^33+3298x^34+1878x^35+895x^36+424x^37+170x^38+76x^39+36x^40+4x^41+4x^42+1x^44

The gray image is a code over GF(2) with n=120, k=16 and d=44.
This code was found by Heurico 1.11 in 18.9 seconds.