The generator matrix

 1  1  1  1  1  1  2  1  1  2  4  2  2  2  2  2  2  1
 0 12  0 12  0 12 12  8  4 12 12 12  0  0  0  0  8  0
 0  0  8  0  0  0  0  8  0  0  8  8  0  8  8  0  8  0
 0  0  0  8  0  0  0  0  8  0  8  8  8  8  0  0  0  0
 0  0  0  0  8  0  0  8  0  8  0  8  8  0  8  0  8  0
 0  0  0  0  0  8  0  0  8  8  0  8  0  8  8  0  8  0
 0  0  0  0  0  0  8  0  0  8  8  8  0  0  0  8  8  0

generates a code of length 18 over Z16 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+24x^12+24x^13+41x^14+80x^15+41x^16+536x^17+564x^18+544x^19+32x^20+72x^21+30x^22+16x^23+30x^24+8x^25+4x^26+1x^30

The gray image is a code over GF(2) with n=144, k=11 and d=48.
This code was found by Heurico 1.16 in 0.0168 seconds.