The generator matrix

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

generates a code of length 90 over Z16 who´s minimum homogenous weight is 89.

Homogenous weight enumerator: w(x)=1x^0+24x^89+194x^90+24x^91+8x^94+1x^96+2x^98+2x^108

The gray image is a code over GF(2) with n=720, k=8 and d=356.
This code was found by Heurico 1.16 in 0.339 seconds.