The generator matrix

 1  0  0  0  1  1  1  1  1  1  2  1  1  1  1  1  2  0  1 2a+2  1  1  1 2a+2  1  0 2a+2  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1 2a  2  1 2a  1  1  1 2a+2  1  1  1  1  2  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1 2a+2 2a  1  1  1  1  1  1  1  0 2a+2 2a  1 2a  1  1  1  1
 0  1  0  0  0  0 2a+2 2a+2 2a+2  2  1  1 2a+1 2a+3 2a+1 3a+2  1  1 a+3  1 2a+3 2a+3 a+1  1  0  1  1 2a+2  3  1 a+2 3a  3 3a 2a+1  2 3a+1 a+1 3a  a 3a+3 2a+2 3a+2 3a+3 2a+1 2a+2  1 2a+2 3a+2  1 3a+3 a+1 3a+1  1 3a+1 2a+1 a+3  0  1 2a 3a+2 2a+3 2a+2 3a+1 2a+2 a+3 3a+1  a 3a+2 2a+3  1 3a+2  1 3a+3  1  1 a+1  2  2 3a+3 2a 3a+2  0  1 2a  1 a+3  1 3a 2a+3  1 2a+3
 0  0  1  0  0  2  0 2a+3  a  1 2a+3  3 2a 2a+3  2  2  a 3a+2 2a  1 3a  a  2  1  a a+2 a+1 2a+1 3a+3  0  0 3a+2 3a 2a+3 3a+2 3a+1  3 3a+2 2a+3  a  a  1  3  a 3a+3 3a+2 2a+1  1  0 2a a+1 2a+2 2a 3a+1 a+3 a+3 3a  a 3a 3a+2 3a  1 3a+1  2  2 2a+1 3a+3 3a+1 2a 2a+2 2a+2 a+2 a+3 3a+3 a+2  3 3a 2a+2 3a+3 2a 3a+2 3a+1 a+1  3  1 2a a+1 3a+3 3a 2a+1 2a a+3
 0  0  0  1  1 3a+2 3a+3 3a+3 3a+1  a a+3 2a+2 a+3 2a+3 3a+2 3a+3 3a 3a+3  3 2a+2  0 3a+2  2 2a+1 3a 2a  3 2a+3  2  2  2 2a+1  3  2 3a+1  3 a+3 2a+2 a+2 a+3 3a 2a+2 3a+3 3a+1 3a+1  1  a  1 3a+2  3  3 3a+3  0 3a+2 3a+1 2a 2a+3 2a+3  a 2a+2 a+3 a+3  a a+2  2  2 a+3 2a+2 3a  3 2a 2a+2 a+1 2a+2 2a+1 a+3 3a+2 a+2  2 a+2 2a+2 a+2 3a+1 3a+2 a+3 a+3 3a+2  0 3a+1 a+2 3a  1
 0  0  0  0 2a+2 2a  2  0 2a 2a+2  0  0  0 2a+2 2a+2 2a 2a+2  2  2  2 2a  2 2a+2  0  0  0 2a+2  0  2 2a 2a+2 2a  2  2 2a 2a  0  2 2a+2  2  2 2a 2a+2 2a+2  0  2  2  2  2 2a  0 2a  2 2a 2a+2 2a+2 2a+2 2a+2  0  2 2a+2 2a+2  0  2  2 2a  2 2a 2a 2a  0  2 2a+2 2a 2a+2 2a+2 2a  2  0 2a+2  0  0  2 2a+2 2a  2 2a+2 2a  0  0  0  0

generates a code of length 92 over GR(16,4) who´s minimum homogenous weight is 254.

Homogenous weight enumerator: w(x)=1x^0+276x^254+588x^255+717x^256+756x^257+2040x^258+2568x^259+3000x^260+2124x^261+4116x^262+4896x^263+4956x^264+3528x^265+6696x^266+8784x^267+7761x^268+5196x^269+9768x^270+11136x^271+9552x^272+7080x^273+12552x^274+14184x^275+11367x^276+8076x^277+13764x^278+14688x^279+11250x^280+7632x^281+11688x^282+11628x^283+9513x^284+5160x^285+7956x^286+7716x^287+5118x^288+2436x^289+3648x^290+3000x^291+1815x^292+816x^293+1056x^294+624x^295+396x^296+168x^297+144x^298+60x^299+21x^300+36x^301+24x^302+24x^304+18x^308+12x^312+6x^316+6x^328+3x^332

The gray image is a code over GF(4) with n=368, k=9 and d=254.
This code was found by Heurico 1.16 in 357 seconds.