The generator matrix

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

generates a code of length 90 over GR(16,4) who´s minimum homogenous weight is 254.

Homogenous weight enumerator: w(x)=1x^0+120x^254+228x^255+441x^256+252x^258+600x^259+906x^260+324x^262+876x^263+1134x^264+504x^266+1068x^267+1146x^268+600x^270+1080x^271+1341x^272+540x^274+1104x^275+1029x^276+420x^278+780x^279+702x^280+240x^282+300x^283+303x^284+72x^286+108x^287+54x^288+33x^292+18x^296+21x^300+15x^304+3x^308+6x^312+3x^316+9x^324+3x^332

The gray image is a code over GF(4) with n=360, k=7 and d=254.
This code was found by Heurico 1.16 in 4.23 seconds.