The generator matrix

 1  0  0  0  1  1  1  1  2  1  1  1 X+2 2X  0  1  X  1  1  1  X 2X  2 2X  1 3X  1  1  1 2X+2 2X+2  1  1  1  1  X  2  1 3X 2X  1  2  1  1  1 X+2  1  1  2 3X+2  1  1  X  1  1  1 3X+2  X  1  0  1  0  1  1  0 3X+2  0  1  1  1  1 X+2  1  1
 0  1  0  0  X  3 2X+1 2X+2  1 3X+3 X+2 3X+1  1  1 3X 2X+1 3X+2 3X+3 2X+3 2X+2  1  X  X  1 X+2  1 2X+2 3X+2 3X+3  1 2X  1  1 3X+2  0  0  1  0  2  1 2X  1 2X+2  1 X+1  1  0  X  1  1 2X+2 3X+1  1 2X+3  X X+1  1 3X+2 X+3  1 X+3 2X 2X+1  2 2X 3X+2  1  2  3 2X+2  1 X+2 2X+2 2X
 0  0  1  0  0  2  1  3  3 2X 2X+1  1  0 X+1  1  1  1 3X+2 X+3 3X+1 2X+2  1 X+2 3X+3 3X+1 X+3  X  0 X+2 3X+2  1  X 3X+3 X+1 2X+2 2X+2  1 X+3  1 X+3 X+2  X 2X+1  X 3X+2 2X+3  2  2 3X+1  2 3X+1 3X+1 3X+2 3X+3 X+3 2X+1  2  1  0 X+1 3X  2 X+1 3X  1  1 2X+1 X+3 2X 3X  1 2X+2 2X  0
 0  0  0  1  1 X+3  2 X+1 X+3  X 3X 2X+1 X+3  0 3X+3 X+2 3X+2 2X+1  3 X+3  3  1  1 3X+2 2X  1 3X+3 3X+2  2 2X+2  X 3X+1 2X+2  3 3X+2  1  0 2X+2 X+1  3 2X+3 2X+1 3X X+2 3X+2  3 2X X+1  0 2X+2 2X+3  3 X+3 2X+1 X+2  1  3 3X+2  0 3X+2  2  1 3X X+1 3X+1 2X+1 X+2 X+1  2 2X  0  1  0  2
 0  0  0  0  2  0  0  0  0  2  2  2  2  2 2X+2 2X 2X 2X+2 2X 2X+2  0  0 2X+2  2 2X 2X+2 2X 2X+2  0  2  2  0 2X+2  2 2X  2 2X+2  2 2X  0 2X  0 2X+2  2 2X 2X+2  2  2 2X  0  0 2X  0 2X+2  0 2X  2 2X+2 2X+2 2X 2X 2X+2  0 2X+2 2X  2 2X+2  0  2  2  2 2X 2X+2  0

generates a code of length 74 over Z4[X]/(X^2+2) who´s minimum homogenous weight is 65.

Homogenous weight enumerator: w(x)=1x^0+212x^65+952x^66+2566x^67+5381x^68+9922x^69+14618x^70+20656x^71+26478x^72+31770x^73+35180x^74+33580x^75+27750x^76+21098x^77+14255x^78+8792x^79+4658x^80+2388x^81+1038x^82+510x^83+201x^84+64x^85+33x^86+16x^87+9x^88+2x^89+4x^90+8x^91+2x^92

The gray image is a code over GF(2) with n=592, k=18 and d=260.
This code was found by Heurico 1.16 in 673 seconds.