The generator matrix

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

generates a code of length 75 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 70.

Homogenous weight enumerator: w(x)=1x^0+35x^70+80x^71+134x^72+164x^73+159x^74+132x^75+67x^76+16x^77+38x^78+64x^79+50x^80+44x^81+3x^82+12x^83+2x^84+9x^86+12x^90+1x^100+1x^112

The gray image is a code over GF(2) with n=300, k=10 and d=140.
This code was found by Heurico 1.16 in 0.328 seconds.