The generator matrix

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

generates a code of length 26 over Z4 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+34x^18+16x^19+81x^20+80x^21+128x^22+176x^23+176x^24+240x^25+192x^26+240x^27+179x^28+176x^29+124x^30+80x^31+63x^32+16x^33+30x^34+11x^36+4x^38+1x^44

The gray image is a code over GF(2) with n=52, k=11 and d=18.
This code was found by Heurico 1.16 in 0.462 seconds.