The generator matrix

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

generates a code of length 91 over Z4 who´s minimum homogenous weight is 76.

Homogenous weight enumerator: w(x)=1x^0+268x^76+810x^78+1390x^80+1858x^82+2332x^84+2870x^86+3237x^88+3588x^90+3493x^92+3380x^94+3039x^96+2406x^98+1880x^100+1150x^102+606x^104+272x^106+122x^108+46x^110+14x^112+4x^114+1x^120+1x^156

The gray image is a code over GF(2) with n=182, k=15 and d=76.
This code was found by Heurico 1.10 in 171 seconds.