The generator matrix

 1  0  0  0  0  1  1  1  1  2  1  1  0  1  2  0  2  1  0  1  1  1  2  1  2  2  2  1  0  1  2  1  1  1  1  0  1  1  0  1  1  1  2  1  1  1  2  1  2  1  1  2  2  2  2  2  1  1  1  0  0  0  1  1  0  2  0  1  2  0  0  0  1
 0  1  0  0  0  0  0  0  2  0  0  2  2  0  2  2  2  3  1  1  3  3  1  1  1  1  1  1  1  3  1  0  3  1  1  1  1  0  0  2  3  1  1  2  3  3  1  1  0  2  3  0  2  1  0  1  2  3  2  0  2  0  2  0  1  2  1  1  2  0  1  1  0
 0  0  1  0  0  0  0  1  1  1  2  3  1  1  1  2  2  2  0  3  3  1  1  1  2  3  1  2  3  2  0  3  0  2  3  3  1  3  1  1  3  0  3  3  0  1  0  1  1  3  2  2  1  0  2  3  1  2  2  1  1  2  1  0  1  0  0  3  1  1  3  3  0
 0  0  0  1  0  1  2  2  0  2  1  1  3  3  3  1  0  3  2  3  2  0  2  1  1  1  2  2  1  2  3  2  3  2  2  2  0  3  2  1  1  0  0  0  3  2  2  2  3  0  2  1  1  0  1  1  3  0  3  1  1  0  2  3  0  1  0  1  1  0  2  3  0
 0  0  0  0  1  1  1  3  0  1  2  1  1  2  0  3  1  3  1  1  3  2  1  2  1  3  0  3  2  0  0  3  0  1  2  0  1  0  3  2  1  1  3  0  1  3  2  2  3  1  1  0  2  0  3  1  3  0  3  3  0  1  0  1  2  3  2  0  1  0  2  0  0
 0  0  0  0  0  2  0  0  0  0  0  0  0  2  2  2  2  2  2  0  0  0  2  0  0  2  0  0  2  2  0  2  2  2  2  0  0  0  2  2  2  2  0  0  0  2  0  2  2  2  0  2  0  2  0  0  2  0  0  0  2  0  2  2  2  0  2  0  0  2  0  0  0

generates a code of length 73 over Z4 who´s minimum homogenous weight is 64.

Homogenous weight enumerator: w(x)=1x^0+42x^64+76x^65+107x^66+144x^67+169x^68+170x^69+132x^70+132x^71+144x^72+118x^73+92x^74+100x^75+65x^76+68x^77+72x^78+76x^79+70x^80+46x^81+53x^82+44x^83+42x^84+24x^85+24x^86+16x^87+5x^88+8x^89+4x^92+2x^93+2x^96

The gray image is a code over GF(2) with n=146, k=11 and d=64.
This code was found by Heurico 1.16 in 0.662 seconds.