The generator matrix

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

generates a code of length 30 over Z8 who´s minimum homogenous weight is 21.

Homogenous weight enumerator: w(x)=1x^0+52x^21+140x^22+258x^23+485x^24+950x^25+1195x^26+3076x^27+2634x^28+5850x^29+3408x^30+5924x^31+2581x^32+3172x^33+1270x^34+936x^35+412x^36+208x^37+124x^38+42x^39+29x^40+6x^41+7x^42+4x^43+2x^44+2x^45

The gray image is a code over GF(2) with n=120, k=15 and d=42.
This code was found by Heurico 1.16 in 13.3 seconds.