The generator matrix

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

generates a code of length 73 over Z4 who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+70x^63+162x^64+180x^65+210x^66+216x^67+242x^68+260x^69+223x^70+270x^71+217x^72+234x^73+234x^74+196x^75+233x^76+150x^77+167x^78+176x^79+152x^80+134x^81+87x^82+82x^83+71x^84+50x^85+30x^86+12x^87+8x^88+12x^89+9x^90+2x^91+2x^92+4x^93

The gray image is a code over GF(2) with n=146, k=12 and d=63.
This code was found by Heurico 1.10 in 0.938 seconds.