The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  2  1  1  2  1  2  1  2  2
 0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  4  4  4  0  0  4  4  0  4  4  4  0  4  0  4  0  4  4  0  0  4  0  0  4  4  0  4  0  4  4  0  4  4  0  4  0  4  4  4  4  0  4  0  4  0  0  0  0  4  4  0  0  4  0  4
 0  0  4  0  0  0  0  0  0  0  0  0  0  0  4  0  4  4  0  4  4  0  4  0  4  0  4  4  0  0  4  4  4  4  0  0  4  4  4  4  0  0  0  4  0  4  0  0  0  4  4  4  0  4  4  4  0  0  0  0  0  4  4  0  4  0  4  4  4  0
 0  0  0  4  0  0  0  0  0  0  0  0  0  4  0  0  4  4  4  4  0  4  4  4  4  0  0  0  4  4  4  4  0  4  0  4  4  0  0  4  4  0  4  0  4  0  4  0  0  0  0  0  4  4  4  4  0  4  0  4  0  4  0  0  4  0  4  0  0  4
 0  0  0  0  4  0  0  0  0  0  0  0  4  0  0  0  4  4  4  0  4  0  4  4  0  4  4  0  4  0  4  0  4  0  4  4  4  0  0  0  0  4  4  0  4  4  4  4  4  4  4  4  4  4  4  4  0  0  0  4  4  0  4  0  4  4  0  4  0  0
 0  0  0  0  0  4  0  0  0  4  4  4  4  4  4  4  0  4  0  0  4  0  4  0  4  0  0  4  0  0  0  0  0  4  4  0  4  0  0  0  4  4  0  4  0  4  4  4  0  0  0  4  4  4  0  0  4  4  4  0  0  0  4  0  4  0  0  4  4  0
 0  0  0  0  0  0  4  0  4  4  4  0  0  0  0  0  0  0  0  4  4  0  4  0  4  4  0  4  0  4  0  4  0  4  0  4  0  4  0  0  4  4  4  4  0  0  4  0  0  4  4  0  4  0  4  4  4  0  4  4  0  4  4  0  4  4  0  0  0  0
 0  0  0  0  0  0  0  4  4  0  4  4  0  0  0  0  0  0  4  4  0  4  4  4  4  0  4  4  0  0  0  0  0  4  4  0  4  4  0  4  0  4  0  0  0  0  4  0  4  0  4  4  0  4  0  0  0  4  4  4  4  4  4  4  4  0  4  0  0  0

generates a code of length 70 over Z8 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+122x^64+120x^68+512x^70+208x^72+8x^76+52x^80+1x^128

The gray image is a code over GF(2) with n=280, k=10 and d=128.
This code was found by Heurico 1.16 in 23.5 seconds.