The generator matrix

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

generates a code of length 73 over Z4 who´s minimum homogenous weight is 60.

Homogenous weight enumerator: w(x)=1x^0+154x^60+544x^62+948x^64+1240x^66+1671x^68+1748x^70+1945x^72+1898x^74+1826x^76+1562x^78+1233x^80+830x^82+472x^84+218x^86+65x^88+24x^90+4x^92+1x^116

The gray image is a code over GF(2) with n=146, k=14 and d=60.
This code was found by Heurico 1.16 in 82.6 seconds.