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  1  1  X  X  X  X  X  X  X  1  1  1  1  1  1  1  1  1  X  X  X  X  X  X  X  2  2  2  2  2  2  2  1  1  0  0  0  0  0  0  0  1  X  X  1  X  X  1  X  X  X  X  1  X  1  1  1  1  1  1  1  1
 0  2  0  0  0  2  2  2  0  0  0  2  0  2  2  2  0  0  0  2  0  2  2  2  0  0  0  2  0  2  2  0  0  2  2  0  2  2  2  0  0  0  2  0  2  2  2  0  0  2  2  0  2  2  0  0  2  2  0  2  2  0  0  2  2  2  2  0  0  0  0  0  2  2  0  0  2  2  0  2  2  0  0  2  2  0  0  0  2  0  2
 0  0  2  0  2  2  2  0  0  0  2  2  2  2  0  0  0  0  2  2  2  2  0  0  0  0  2  2  2  2  0  0  2  2  0  2  2  0  0  0  0  2  2  2  2  0  0  0  2  2  0  2  2  0  0  2  2  0  2  2  0  0  0  0  0  2  2  2  2  0  2  0  2  0  0  2  2  0  2  2  0  2  0  2  0  0  0  2  2  2  2
 0  0  0  2  2  0  2  2  0  2  2  0  0  2  2  0  0  2  2  0  0  2  2  0  0  2  2  0  0  2  2  2  2  0  0  0  2  2  0  0  2  2  0  0  2  2  0  2  2  0  0  0  2  2  2  2  0  0  0  2  2  0  2  0  2  2  0  0  2  2  2  0  0  0  2  2  0  0  0  2  2  0  0  2  2  0  2  2  0  0  0

generates a code of length 91 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 91.

Homogenous weight enumerator: w(x)=1x^0+32x^91+21x^92+7x^96+2x^100+1x^108

The gray image is a code over GF(2) with n=364, k=6 and d=182.
This code was found by Heurico 1.16 in 0.418 seconds.