The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  1
 0  8  0  0  0  0  8  0  8  8  0  0  8  8  8  8  0  0  0  0  0  8  8
 0  0  8  0  0  0  8  8  8  0  8  8  8  8  0  0  0  0  0  8  8  8  8
 0  0  0  8  0  8  0  8  0  8  8  0  8  8  8  0  0  0  8  8  0  0  0
 0  0  0  0  8  8  0  0  8  8  8  8  8  0  0  8  8  0  8  0  0  0  0

generates a code of length 23 over Z16 who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+11x^20+16x^22+192x^23+31x^24+4x^28+1x^44

The gray image is a code over GF(2) with n=184, k=8 and d=80.
This code was found by Heurico 1.16 in 0.00359 seconds.