The generator matrix

 1  0  0  1  1  1  1  1  1  1 2a+2  1  1  1  1  1  1  0  1  1  1  1 2a  1  1  1  1  1  0 2a  1  1  1  1  1
 0  1  0  1  a 3a+3 2a+2 2a+2  1 3a+2  1  a  0 a+1 a+1 2a+3 3a+2  1 2a+1 2a+2 3a+3  1 2a+2 3a+1  1 3a+2 a+2 2a+2 2a+2  1 3a+2  2  2 2a+3  3
 0  0  1 3a+3  a  1  1 3a+3  3 3a+3 3a+3  0 a+2  0  a a+2 2a+1  a 2a+2 2a+3 a+2 3a+1  1  3 3a 3a+1 3a+2 2a+2  1  2 2a+1 2a+1 a+2  2 a+1
 0  0  0  2  0  2  0  0 2a+2 2a 2a+2 2a+2 2a+2  2 2a+2 2a+2 2a  0  0 2a  0 2a+2  2  2  2 2a+2  2 2a 2a+2 2a+2  0  0  2 2a  2
 0  0  0  0  2 2a+2 2a 2a+2  2  0  0 2a  2 2a 2a 2a+2 2a 2a+2  2  2 2a+2 2a 2a  0 2a+2 2a+2 2a+2  0  0 2a+2  0 2a+2 2a  0 2a

generates a code of length 35 over GR(16,4) who´s minimum homogenous weight is 91.

Homogenous weight enumerator: w(x)=1x^0+252x^91+483x^92+468x^93+420x^94+1332x^95+1554x^96+1416x^97+1068x^98+3108x^99+3213x^100+2952x^101+1944x^102+5304x^103+5355x^104+4848x^105+3144x^106+6516x^107+5676x^108+4164x^109+2244x^110+4212x^111+2763x^112+1512x^113+396x^114+780x^115+288x^116+57x^120+33x^124+30x^128+3x^132

The gray image is a code over GF(4) with n=140, k=8 and d=91.
This code was found by Heurico 1.16 in 11.2 seconds.