The generator matrix

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

generates a code of length 25 over Z4 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+59x^18+70x^19+128x^20+148x^21+148x^22+198x^23+152x^24+212x^25+193x^26+178x^27+187x^28+140x^29+103x^30+66x^31+42x^32+12x^33+8x^34+1x^36+1x^38+1x^40

The gray image is a code over GF(2) with n=50, k=11 and d=18.
This code was found by Heurico 1.16 in 0.135 seconds.