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  2  2  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
 0  8  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  8  8  8  0  0  8  8  0  8  8  0  0  8  8  8  8  8  8  8  8  8  8  8  0  8  8  8  0  8  0  8  8  8  0  8  8  0  0  0  8  8  8  8  8  0
 0  0  8  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  8  8  8  0  0  0  8  8  0  0  8  8  8  8  8  0  0  8  8  8  8  8  8  8  8  0  8  0  8  8  8  0  8  0  8  8  8  8  8  8  8  8  8  8  0  0  0  8
 0  0  0  8  0  0  0  0  0  0  0  8  8  8  8  8  8  8  8  8  0  8  8  0  8  8  8  8  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  8  8  8  8  8  8  0  0  8  8  8  8  8  8  0  0  8  8  8  8  0  0
 0  0  0  0  8  0  0  0  8  8  8  8  8  0  8  8  0  0  0  0  0  0  0  0  0  0  0  0  0  8  8  8  8  8  8  0  8  0  8  0  8  0  8  8  8  8  8  0  8  8  8  0  8  0  8  8  0  8  8  0  8  0  8  8  8  8
 0  0  0  0  0  8  0  8  8  8  0  0  0  0  8  8  8  8  0  0  0  0  0  0  8  8  8  8  8  8  8  0  0  0  0  0  8  0  8  8  0  8  0  8  8  0  0  8  0  8  8  8  0  8  8  8  0  0  8  8  8  0  8  0  8  0
 0  0  0  0  0  0  8  8  0  8  8  0  8  8  8  0  0  8  0  8  8  0  8  8  8  0  8  0  0  0  8  0  8  0  8  0  0  8  8  8  8  0  0  8  0  8  0  8  8  0  8  8  8  0  8  8  8  0  0  8  0  0  8  0  0  0

generates a code of length 66 over Z16 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+78x^64+880x^66+48x^68+16x^70+1x^128

The gray image is a code over GF(2) with n=528, k=10 and d=256.
This code was found by Heurico 1.16 in 4.79 seconds.