The generator matrix 1 0 0 0 1 1 1 2 1 1 2 1 1 1 1 0 1 1 1 1 0 0 1 0 0 2 2 2 0 3 1 1 0 0 3 1 1 3 1 1 3 1 0 0 1 0 0 3 1 1 2 1 1 2 3 1 0 3 3 2 3 3 2 0 0 0 1 1 3 0 3 2 2 0 0 2 1 3 1 1 1 2 0 3 generates a code of length 21 over Z4 who´s minimum homogenous weight is 18. Homogenous weight enumerator: w(x)=1x^0+76x^18+69x^20+48x^22+39x^24+12x^26+3x^28+8x^30 The gray image is a code over GF(2) with n=42, k=8 and d=18. This code was found by Heurico 1.16 in 0.00763 seconds.