The generator matrix

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

generates a code of length 35 over Z8 who´s minimum homogenous weight is 26.

Homogenous weight enumerator: w(x)=1x^0+108x^26+274x^27+700x^28+1344x^29+2033x^30+3960x^31+4833x^32+7216x^33+7291x^34+9176x^35+8286x^36+7348x^37+4887x^38+3960x^39+1772x^40+1208x^41+657x^42+286x^43+114x^44+36x^45+32x^46+8x^47+6x^48

The gray image is a code over GF(2) with n=140, k=16 and d=52.
This code was found by Heurico 1.16 in 53.5 seconds.