The generator matrix

 1  0  1  1  1  8  1  1 14  1  6  1 14  1  1  1  1  4  1  1  4  1  8  1  1 10  1  1  8  1  1 14  2  1  1  1  4 10  1  1  1 10 12  1  1  1  1  1  1  1  2  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  4  3  1  2  9  1  6  1  7  1  6  7  0  9  1 12  1  1  8  1 10 11  1  3 10  1  5  0  1  1  3  5 10  1  1  7 13 15  1  1  5  2 10  8  4  4  8  8  6 12 14  8  8  9  4  6 14 14 14 14  2 12  4 11
 0  0  2 10  8 10 10  8 10  0  0  2 12 12 14  4  6 10  6 12 14 10  4  4  4  4  6  6  6  4 14 14  0  2  8  0 12  6 12  6  8 10  0 10  6  2  0  4  8 12  8  6  0 14  6 14 12 12  8  4 12  2 10  0 14  6  4

generates a code of length 67 over Z16 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+262x^64+432x^65+392x^66+64x^67+263x^68+384x^69+168x^70+40x^72+16x^73+16x^74+8x^80+1x^96+1x^100

The gray image is a code over GF(2) with n=536, k=11 and d=256.
This code was found by Heurico 1.16 in 0.233 seconds.